#Pesticide degradation
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delta-remediation · 2 years ago
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Effective Bioremediation Techniques: A Sustainable Solution for Environmental Cleanup
Bioremediation is a sustainable and cost-effective solution to environmental pollution, using living organisms such as bacteria and fungi to degrade pollutants into harmless compounds. There are various bioremediation techniques, including in situ (at the site of pollution) and ex situ (removing contaminants to treat elsewhere). Other methods include bioventing, biosparging, and use of bioreactors to promote the natural degradation of pollutants.
These techniques can handle a wide array of pollution types including petroleum, heavy metal, pesticide contamination, industrial waste, and landfill leachate. Benefits of bioremediation include its sustainability, cost-effectiveness, versatility, and non-invasiveness.
One company leading the way in bioremediation is Delta Remediation, based in Alberta, Canada. They specialize in applying these techniques to sites polluted with hydrocarbons, pesticides, and industrial waste, and have expanded their operations to Nigeria and Kenya.
Bioremediation thus offers a promising method for environmental cleanup, being both eco-friendly and adaptable to diverse environments. Companies like Delta Remediation are pioneering in this sector, making significant contributions to environmental health.
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mytapas2024 · 18 days ago
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VallaaraiRice Mix– Natural Products - MyTapas
Boost your meals with Vallaarai Rice Mix from Mytapas! Packed with Vallaarai, a herb known for promoting cognitive health. Tasty, nutritious, and wholesome! Order now at [email protected]!
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cathkaesque · 2 years ago
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The local population in countries that export bananas typically eat different varieties grown primarily by small farmers. The ones for the Americans and the Europeans, Cavendish variety bananas, are grown in huge, monoculture plantations that are susceptible to disease. The banana industry consumes more agrichemicals than any other in the world, asides from cotton. Most plantations will spend more on pesticides than on wages. Pesticides are sprayed by plane, 85% of which does not land on the bananas and instead lands on the homes of workers in the surrounding area and seeps into the groundwater. The results are cancers, stillbirths, and dead rivers.
The supermarkets dominate the banana trade and force the price of bananas down. Plantations resolve this issue by intensifying and degrading working conditions. Banana workers will work for up to 14 hours a day in tropical heat, without overtime pay, for 6 days a week. Their wages will not cover their cost of housing, food, and education for their children. On most plantations independent trade unions are, of course, suppressed. Contracts are insecure, or workers are hired through intermediaries, and troublemakers are not invited back.
Who benefits most from this arrangement? The export value of bananas is worth $8bn - the retail value of these bananas is worth $25bn. Here's a breakdown of who gets what from the sale of banana in the EU.
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On average, the banana workers get between 5 and 9% of the total value, while the retailers capture between 36 to 43% of the value. So if you got a bunch of bananas at Tesco (the majority of UK bananas come from Costa Rica) for 95p, 6.65p would go to the banana workers, and 38p would go to Tesco.
Furthermore, when it comes to calculating a country's GDP (the total sum of the value of economic activity going on in a country, which is used to measure how rich or poor a country is, how fast its economy is 'growing' and therefore how valuable their currency is on the world market, how valuable its government bonds, its claim on resources internationally…etc), the worker wages, production, export numbers count towards the country producing the banana, while retail, ripening, tariffs, and shipping & import will count towards the importing country. A country like Costa Rica will participate has to participate in this arrangement as it needs ‘hard’ (i.e. Western) currencies in order to import essential commodities on the world market.
So for the example above of a bunch of Costa Rican bananas sold in a UK supermarket, 20.7p will be added to Costa Rica’s GDP while 74.3p will be added to the UK’s GDP. Therefore, the consumption of a banana in the UK will add more to the UK’s wealth than growing it will to Costa Rica’s. The same holds for Bangladeshi t-shirts, iPhones assembled in China, chocolate made with cocoa from Ghana…it’s the heart of how the capitalism of the ‘developed’ economy functions. Never ending consumption to fuel the appearance of wealth, fuelled by the exploitation of both land and people in the global south.
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herpsandbirds · 8 months ago
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Rusty Patched Bumble bee? I'm kinda bummed that they havent been seen in my area for over two decades
ENDANGERED BUMBLEBEE:
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Rusty -patched Bumblebee (Bombus affinis), family Apidae, found in the eastern U.S.
CRITICALLY ENDANGERED.
Massive population declines ar due to overuse of pesticides, habitat degradation and loss, and pathogens.
This large bumblebee requires 3 different habitats for different life stages: nesting, foraging, and hibernation.
Relatively cold tolerant, and sometimes found at higher elevations.
photographs: Larry Reis, Heather Holm, & Barbara C. Williams
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probablyasocialecologist · 4 months ago
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Biodiversity loss in agriculture is a pressing threat to global food systems, reducing our ability to cope with climate change, environmental degradation, and nutritional challenges. Over the past century, about 75% of plant genetic diversity has been lost as farmers have shifted toward high-yielding, genetically uniform crops. Today, just nine plant species account for 66% of global crop production, with rice, wheat, and maize alone providing more than 50% of the world’s plant-derived calories. This reliance on a narrow set of crops undermines food system resilience, leaving us vulnerable to pests, diseases, and climate extremes. It has also created a monocultural vulnerability reminiscent of the Irish potato famine of the 1840s, when reliance on a single, genetically uniform crop led to catastrophic losses due to disease. Genetic diversity within and among species acts as a natural buffer against environmental changes. Different crop varieties respond differently to stressors, providing farmers with options to manage risks. When one crop fails, others can compensate, helping to safeguard harvests and livelihoods. However, as the diversity on our farms diminishes, farmers have fewer tools to adapt to the growing volatility brought on by climate change. Extreme weather events such as droughts, floods, and heat waves are becoming more severe, and monocultures are ill-equipped to withstand these shocks. The environmental impact of current agricultural practices further exacerbates biodiversity loss. Agriculture is responsible for about 90% of global deforestation and contributes substantially to habitat destruction, driving the extinction of countless species. Excessive use of inorganic fertilizers and pesticides pollutes soils and waterways, disrupting ecosystems and degrading essential natural services such as pollination and soil fertility. Soil degradation now affects one-third of the world’s soils. In sub-Saharan Africa, agriculture is responsible for 80% of soil degradation on farmland, leading to reduced plant diversity because only the few species that can tolerate poor soil conditions survive. Moreover, the heavy use of nitrogen fertilizers and livestock manure, particularly in regions such as Asia and Latin America, has disrupted natural nitrogen cycles, contributing to greenhouse gas emissions such as nitrous oxide and methane. These emissions not only drive climate change but also accelerate biodiversity loss by reducing the resilience and health of ecosystems. The decline of agricultural biodiversity also impacts human health. Diets worldwide have become increasingly homogeneous, dominated by a few staple crops that are energy-rich but nutrient-poor. Less than 200 species currently contribute to global food supplies, and this lack of variety has serious health consequences. Low dietary diversity is now a leading driver of diet-related deaths, with about 11 million premature deaths annually linked to unhealthy diets. The decline in biodiversity means that fewer nutrient-rich foods such as fruits, vegetables, nuts, and seeds are available, exacerbating malnutrition in all its forms, from undernutrition to obesity.
10 October 2024
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our-lady-of-the-forest · 4 months ago
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Many Small Steps
This is the list written by Andrea Cohen-Kiener in her book "Claiming the Earth as Common Ground". It is her list of how to join the Ecology Action Alliance. There are no dues, or any requirements for membership other than to choose three things from the list to begin immediately, and to add one item from the list each week until you are living the most ecological lifestyle possible FOR YOU.
I highly recomend reading this book.
I will recycle whatever I can through my municipality.
I will buy snacks and other foods in degradable (paper) containers whenever possible
I will avoid buying/using clothes that require dry cleaning
I will choos food and other products in the most ecological packaging availible(Paper, cotton and glass as opposed to plastic).
I will not buy/use Styrofoam products
I will not buy/use aerosal cans.
I will start/expand my garden
I will reduce/eliminate toxic pesticides in my lawn and garden.
I will purchase clean, renewable energy through my electric utility (www.gocleanenergy.com)
I will join a gardening club.
I will establish a bartering relationship with a neighbor.
I wil set a radius (two blocks/two miles?) and make a commitment to walk everywhere I need to go within that radius.
I will choose one day a week to refrain from driving.
I will buy/repair/use a bicycle.
I will make a serious and sustained effort to carpool and combine driving errands.
I will prioritize my neighborhood merchants.
I will repair and reuse major appliances whenever possible.
I will donate or finds a use for items I no longer wish to use whenever possible.
I will patronize the used goods market whenever possible.
I will buy/utilize hand-powered appliances and tools whenever possible.
I will become an urban livestock keeper (bees, eggs, poultry).
I will copy this list and encourage one persona week to become a member of the Ecology Action Alliance.
I will reduce/eliminate toxic cleaning supplies and replace them with nonpoisonous cleaning supplies in my home/workplace.
I will make a sustained effort to turn off appliances and lights that are not in use.
I will encourage retailers and manufacturers to reduce/simplfy packaging material.
I will contract for a home energy audit (contact your utility company for details).
I will use natural light and ventilation (windows!) whenever possible.
I will use simple measures (massage, tea, rest) when dealing with common ailments.
I will ask friends to consider natural products and materials when choosing gifts for me.
I will bring my own cloth or paper bags for shopping trips.
I will eat the most wholesome and unadultered diet possible.
I will support bussinesses that promote environmental awareness.
I will join/contribute to an environmental group.
I will buy/use recycled paper whenever possible.
I will ask my grocer to carry local/organic produce.
I will ask my grocer to carry alternatives to Styrofoam products.
I wil lobby political representatives to make the enviorment a priority.
I will petition my civic groups (school, business, congregation) to conserve, recycle and consume responsibly.
I will enjoy moments outside each day.
I will learn about the vegetation and wildlife in my area.
I will study and be a resource for my community for one aspect od the enviornmental agenda (solid waste, conservation, the charitable network, ecology legislation, whole foods, alternative healing, etc.).
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rjzimmerman · 3 months ago
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Excerpt from this story from The Guardian:
Governments risk another decade of failure on biodiversity loss, due to the slow implementation of an international agreement to halt the destruction of Earth’s ecosystems, experts have warned.
Less than two years ago, the world reached a historic agreement at the Cop15 summit in Montreal to stop the human-caused destruction of life on our planet. The deal included targets to protect 30% of the planet for nature by the end of the decade (30x30), reform $500bn (then £410bn) of environmentally damaging subsidies, and begin restoring 30% of the planet’s degraded ecosystems.
But as country representatives dig into their second week of negotiations at Cop16 in Cali, Colombia – their first meeting since Montreal – alarm is growing at the lack of concrete progress on any of the major targets they agreed upon. An increasing number of indicators show that governments are not on track. They still need to protect an area of land equivalent to the combined size of Brazil and Australia, and an expanse of sea larger than the Indian Ocean to meet the headline 30x30 target, according to a new UN report.
Weak progress on funding for nature and almost no progress on subsidy reform have also frustrated observers. At the time of publication, 158 countries are yet to submit formal plans on how they are going to meet the targets, according to Carbon Brief, missing their deadline this month ahead of the biodiversity summit in Cali, where governments are not likely to set a new deadline.
The world has never met a target to stem the destruction of wildlife and life-sustaining ecosystems. Amid growing scientific warnings about the state of life on Earth, there has been a major push to make sure this decade is different, and that governments comply with targets designed to prevent wildlife extinctions, such as cuts to pesticides use and pollution.
Leading figures in conservation and science have raised concerns about the progress governments are making towards the targets in Cali. Martin Harper, CEO of Birdlife International, said meaningful action on commitments was vital.
“We cannot accept inaction as the new normal. This means more action to bolster efforts to recover threatened species, to protect and restore more land, fresh water and sea, and to transform our food, energy and industrial systems. We have five years to raise hundreds of billions of dollars. If we don’t see it materialise, I dread to think where we will be in 2030,” he said
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tzifron · 10 months ago
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The Bill and Melinda Gates Foundation is a major influencer and funder of agricultural development in Africa, with little accountability or transparency. Leading experts in food security and many groups in Africa and around the world have critiqued the foundation’s push to expand high-cost, high-input, chemical-dependent agriculture in Africa. Critics say this approach is exacerbating hunger, worsening inequality and entrenching corporate power in the world’s hungriest region.
This fact sheet links to reports and news articles documenting these concerns.
[...]
What are the main critiques of Gates Foundation’s agricultural program?
The Gates Foundation’s flagship agricultural program, the Alliance for a Green Revolution in Africa (AGRA, which recently rebranded to remove the term “green revolution” from its name), works to transition farmers away from traditional seeds and crops to patented seeds, fossil-fuel based fertilizers and other inputs to grow commodity crops for the global market. The foundation says its goal is to “boost the yields and incomes of millions of small farmers in Africa… so they can lift themselves and their families out of hunger and poverty.” The strategy is modeled on the Indian “green revolution” that boosted production of staple crops but also left a legacy of structural inequity and escalating debt for farmers that contributed to massive mobilizations of peasant farmers in India.
Critics have said the green revolution is a failed approach for poverty reduction that has created more problems than it has solved; these include environmental degradation, growing pesticide use, reduced diversity of food crops, and increased corporate control over food systems. Several recent research reports provide evidence that Gates-led agricultural interventions in Africa have failed to help small farmers. Critics say the programs may even be worsening hunger and malnutrition in Southern Africa.
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allthebrazilianpolitics · 4 months ago
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Brazilian singer Leonardo accused of having slave-like conditions on one of his farms
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One of Brazil’s most iconic musicians, country singer Leonardo, is embroiled in a scandal involving the use of slave labor at one of his farms in the state of Goiás. The Ministry of Labor has included the artist’s name on its “dirty list” of employers who keep people working in conditions akin to modern-day slavery.
During an inspection of the property, federal authorities discovered six workers, including a 17-year-old, living and laboring under extremely degrading conditions. Located in the town of Jussara, the “Talismã” farm spans over 1,000 hectares and is valued at R$60 million (USD10.5 million).
Throughout his career, Leonardo  – whose real name is Emival Eterno da Costa – has expanded into the livestock and agriculture business. The farm in question is dedicated to raising cattle and horses. In addition to space designated for raising livestock, the farm also houses an extensive leisure structure for the artist’s family and friends, with volleyball courts, a swimming pool, and a large lake that surrounds the main residence of the farm and where it is possible to go jet-skiing.
In stark contrast to the luxury of the farm’s social spaces, the workers’ accommodations were found in a dire state. The house in which they stayed was dilapidated, lacked potable water, and had no proper sanitation. Inspectors reported that the workers slept on makeshift beds fashioned from wooden planks and pesticide barrels, while the quarters were infested with insects and bats, and reeked of a foul odor.
Continue reading.
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yourreddancer · 13 days ago
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Researchers tested the fire safety and strength of hemp blocks, a sustainable building material made from hemp, lime, and water.
The study, published in the Journal of Building Engineering, found that Hemp blocks don’t catch fire with open flames but instead smolder slowly, producing very little smoke. In fact, walls made of hemp blocks stayed structurally intact for 2 hours during fire tests.
In terms of heat tolerance, hemp blocks retained most all of their structural strength up to 200°C (392°F). At 300°C (572°F), they still showed controlled burning without collapsing. The study also suggests that plastering hemp block walls can further enhance their fire resistance, making them even more reliable for building projects.
In short, hemp blocks are not only safer in the event of a fire but are also a sustainable building option. The use of hemp, a fast-growing crop, helps reduce the environmental footprint of construction materials and the minimal smoke produced during fire scenarios makes hemp blocks a safer choice for both occupants and first responders.
That said, hemp blocks have a compressive strength of 1.0 MPa, making them suitable for non-load-bearing walls. This means they aren’t intended for primary structural support but are perfect for walls that don’t carry heavy loads.
Hemp does not need fungicides, herbicides, or pesticides. It has been used for building for thousands of years. Right now the museum of natural history in San Francisco uses in their storehouse for climate control (temperature and humidity) of artifacts that would be damaged otherwise. It draws carbon out the air becoming stronger as it ages instead of breaking down like standard building materials we use now. Hempcrete is made by mixing hemp hurd (the woody inner core of the male hemp plant), water, and a lime binder. That's it
. It's starting to be more widely used in England and Europe. Imagine buying locally grown hemp hurd to build a home that would never dry rot, no termites, no bugs or vermin in the walls, self insulating, hypoallergenic, soundproof, never needs painting or siding, and doesn't burn. Imagine what it could do for the economy. As it grows it restores the natural biome of soil, absorbs toxins rendering them inert, and it uses 75% less water. It's is used to restore land overrun by invasive species because of it's rapid growth. It chokes them out. 
Growing hemp was required for the shipping industry to make the sails, rigging, ropes, clothing, deck shoes. You're probably not old enough to know the term "canvas shoes" but the heavy fabric used was made from hemp because it was much more durable and resistant to salt water degradation and ultraviolet radiation. Sails made from cotton only lasted 2 years but hemp sails lasted for 5. Considering the sails etc were the most expensive part of the ship (well over half the cost of the ship) you can see why farmers were required to grow it. For the colonies to conduct trade they needed lots of hemp. You could pay your taxes with it for over 200 years.
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mentally-quiet-spycrab · 15 days ago
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Act Now for Monarch Butterflies! (URGENT!)
The one-of-a-kind monarch butterfly is at risk of becoming extinct. Both the eastern and western populations of the North American migratory monarch have suffered drastic population declines in recent decades due to habitat loss and fragmentation, excessive pesticide use, and climate change. Last month, the U.S. Fish and Wildlife Service announced its proposal to list the monarch butterfly as threatened under the Endangered Species Act, which would improve the outlook for the recovery of this beloved pollinator.
Please submit a comment in favor of listing the monarch butterfly as threatened under the Endangered Species Act, to help secure federal support for declining populations of monarchs and their habitats.
Migratory western monarch butterflies reached their lowest point when less than 2,000 monarchs were spotted in 2020, far fewer than the millions recorded in the eighties along the California coast. According to the most recent Species Status Assessment, the probability of extinction for eastern monarchs ranges from 48%-69% within the next 60 years, with a more dire prediction for the western monarch, with a 98-99% probability of extinction. This is why monarch butterflies need your help to receive federal protections as a threatened species, before it’s too late.
The Endangered Species Act is one of our most successful conservation laws, with 99% of listed species avoiding extinction so far. A listing under the Endangered Species Act would bring increased resources, consistency, coordination, and awareness to recover the monarch butterfly in the face of threats including habitat loss, excessive pesticide use, and climate change. A listing will also support the large-scale mobilization of people and resources needed to plant enough native milkweed and nectar habitat to recover the monarch butterfly. Will you take action to get monarch butterflies the help they need to survive?
Monarch butterflies across North America migrate from as far as southern Canada all the way south to California and Mexico. This migration is unique for insects—these butterflies have what can be considered an internal “compass” that points them in the right direction each spring and fall, and a single monarch can travel hundreds, even thousands of miles. But habitat destruction and degradation, excessive pesticide use, and climate change pose increasing existential threats to this remarkable species. It would be unthinkable to live along their migration path and never see another monarch butterfly again.
The Endangered Species Act could provide help for the monarch butterfly’s road to recovery and bolster all the other efforts to safeguard this species. This decision represents a crucial step forward and, coupled with renewed efforts to plant native milkweed and nectar plants while reducing threats, gives us the opportunity to put this magnificent species on the path to recovery. Please speak up for Monarch butterflies today by recommending the U.S. Fish and Wildlife Service list them as a threatened species.
This is a pivotal moment for the survival of monarch butterflies. Your voice can make a difference. Thank you for being an advocate for our nation’s wildlife.
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mytapas2024 · 7 hours ago
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Homestyle Salsa– Natural Products - MyTapas
Try Mytapas’ Homestyle Salsa! Fresh and tangy salsa made from ripe tomatoes & herbs! No artificial preservatives, perfect for dipping or topping. Order now: [email protected]!
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dailyanarchistposts · 5 months ago
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Biotechnology and the future of humanity
Biocide or Genocide?
The high cost of chemical and mechanical inputs and expensive new seed varieties favours large farmers over small; they are bankrupted, lose their land and end up either in the huge and squalid shanty towns and slums that surround so many majority world cities or as agricultural labourers on big farms or plantations. Here they may be one of the over 40,000 ‘Third World’ farm workers killed each year as a result of contact with agro-chemicals. A 1994 UN report estimated 1,000,000 people a year are made ill as a result of over- exposure to agro-chemicals. The increasing use of animal products as well as leading to the misery, waste and pollution of factory farming is also responsible for the erosion of biodiversity and peoples livelihoods in the majority world. For example almost all of Central America’s lowland and lower montane rainforest has been cleared or severely degraded mainly in order to raise cattle for export. The crops most grown under ‘Green Revolution’ and GM regimes of industrial food production are maize and soya, not for human consumption but for animal feed. Small scale organic farming systems based around plants and supporting the producers directly are being destroyed in favour of chemical soaked monocultures to feed the farm animals necessary to feed the animal product heavy global food economy.
Because ‘pests’ and ‘weeds’ can rapidly become immune to herbicides and biocides chemicals don’t even do what they say they do; pesticide use in the US increased by 500% between 1950–1986 yet estimated crop loss due to pests was 20%, exactly the same as in 1950. The damage done by the production and use of biocides and artificial fertilisers is almost unimaginable. Pesticide pollution of the natural world (air, water & soil) is one of the major reasons for the staggering loss of biodiversity (estimated at a loss of 30,000 species a year) we are witnessing as the world is slowly turned into a huge agro-chemical-industrial facility. Pesticide and artificial fertiliser pollution, along with other petro-chemical forms of pollution and increased exposure to radiation, are responsible for massive rates of cancer and birth abnormalities. Then there are the ‘accidents’ which show the system’s inhumanity even more clearly: such as the 1984 explosion at Union Carbide’s insecticide factory in Bhopal, India which left 3,000 dead and 20,000 permanently disabled. Or the less well-publicised events in Iraq in 1971–1972 when large quantities of wheat seed that had been treated with anti-fungus compounds containing mercury were ‘accidentally’ baked into bread. 6,000 neurologically deranged people were admitted to hospital and at least 452 died. Corporate propagandists would have us believe that these are unfortunate side effects of a beneficial technology we desperately need to ‘feed the world. Yet, as anyone who takes the trouble to find out the facts must be aware, the world produces more food than is necessary to feed the human population and the reasons people go hungry are landlessness, poverty, and social dislocation caused by capitalist oppression and war.
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the-elmo-batman · 5 days ago
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why cauliflower? do you grow it on ur trad farm? do u eat it raw? (ew) also if ur only growing cauliflower to the point its all you eat i think you should explore regenerative farming practices, monocropping could really hurt ur trad farm as it opens ur crops up to pests and disease very easily and can cause soil degradation and a lack of biodiversity overall, which could harm ur character.ai livelihood! also w monocropping theres generally an over reliance on pesticides and synthetic fertilizer, which again also bad.
No. I’ve also made it where I’m a god that can control the fabric of the universe for my love thanks to dinosaur aliens.
Just like onisin, my favorite author, and his one book.
But you’re not learned from the sounds of it.
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mariacallous · 2 years ago
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Humans have long sullied the Arctic with industrial development—mining operations, oil and gas exploration, military bases. That’s contaminated the landscape with a bevy of toxicants, including radiological material, heavy metals, insecticides, and fuels. That nastiness was often intentionally buried in frozen ground known as permafrost. In theory, as long as that ground remained frozen, the pollutants would stay locked away.
No longer. An alarming new paper in the journal Nature Communications estimates that between 13,000 and 20,000 contaminated sites are splayed across Arctic permafrost regions, with 3,500 to 5,200 in areas that’ll be affected by thawing soils before the end of the century. The region is already warming rapidly, more than four times faster than the rest of the planet. And that estimated number of sites is likely low, the scientists warn, because thaw might dramatically accelerate in some places. 
As permafrost degrades, it collapses, releasing buried contaminants that flow out in the melted ice. The ground sinks—often spectacularly and rapidly—dragging down aboveground infrastructure like fuel tanks and pipelines. Indeed, that was the suspected cause of a 2020 environmental disaster in Norilsk, Russia, in which 17,000 tons of oil leaked from a collapsed tank.
“The assumption is that permafrost is a hydrological barrier, and it will remain there forever,” says permafrost researcher Moritz Langer, of the Alfred Wegener Institute and Vrije Universiteit Amsterdam, lead author of the new paper. “That was the assumption for all of these very old sites—especially from the ‘70s, ‘80s, up until the ‘90s—when climate warming and the problem of permafrost thaw was not really on the radar of most people.”
Langer and his colleagues found that 70 percent of these sites are in Russia, with others across Alaska, Canada, and Greenland. Some facilities are abandoned and difficult to access and clean up. Others are still operational, and producing yet more toxicants to leak into the environment. (The new paper doesn’t distinguish, though, exactly which sites are which.) As the Arctic warms, expect industrial and military development to creep farther north, adding more contaminants while putting more people in contact with them. And the mushier the soil gets, the harder it will be to use heavy equipment to clean up the messes.
“This idea that somehow we have, functionally, a number of potential Superfund sites that were completely unknown until this paper, but could be mobilizing into the Arctic and potentially international environment, is pretty terrifying,” says Kimberley R. Miner, a climate scientist who studies permafrost contamination at NASA’s Jet Propulsion Laboratory but wasn’t involved in the new paper. “To see them take that idea and apply it to actual maps and get actual sites, with permafrost disturbance underneath, was so mind-blowing to me.”
Existing sites are already plagued by a slew of environmental troubles. Oil leaks come from both wells and from pipelines. Radioactive material is buried around military bases. Pesticides like DDT are packed in barrels, then buried. Mining operations are notorious for emitting heavy metals like mercury; other sites are full of arsenic, lead, and other highly toxic elements and compounds. Trucks and heavy machinery carry liquid fuels like diesel, which are prone to spill. 
Once the ground is no longer frozen enough to form a barrier, those contaminants will seep into rivers and ponds, corrupting highly sensitive ecosystems. “This, we think, could also be a dangerous situation for people living up in the high north,” says Langer, as the contaminants mix with drinking water.
That water will eventually empty into the ocean and ride elsewhere on currents. Toxicants can also get airborne: Indeed, the Arctic is already dusted with lead from burning leaded gasoline. Mercury, too, could escape mining operations by taking to water and air. “Mercury that came from the burning of coal and fossil fuels from a century or two centuries ago is still cycling through our biosphere,” says Kevin Schaefer, a climate scientist at the University of Colorado, Boulder, who studies permafrost contaminants but wasn’t involved in the new paper.
Human activity in the Arctic only exacerbates the thaw. Dark-colored roads absorb the sun’s energy, heating the soil. Digging up dirt and tossing it on top of snow darkens the whiteness that would normally bounce light off the landscape. Vehicle tires chew up the soil. “You already have rapidly changing environmental conditions,” says George Washington University climate scientist Dmitry Streletskiy, who studies permafrost but wasn’t involved in the new paper. “But then, of course, on top of those rapid changes, you have concentrated human presence—you have industry and infrastructure. So those are really focal points, where you in many ways amplify those changes associated with climate."
Oh, and the giant new Willow drilling project in Alaska that the Biden administration just approved? That’ll be on permafrost too. “Think about what it takes to establish a pipeline,” says Miner. “You're going to need a road. You're going to have people walking in and out, trampling the permafrost. All of that is going to lead to increased thaw and increased potential for contamination and disturbances to the very fragile tundra landscape. So it's just impacts upon impacts upon impacts.”
This new paper only considered gradual permafrost thaw. But permafrost can collapse much more rapidly, digging holes known as thermokarst. As ice becomes liquid water, it loses volume, forming a crater in which microbes produce the highly potent greenhouse gas methane. This further warms the atmosphere and accelerates permafrost thaw—a gnarly climatic feedback loop.
Adding yet more peril is that as the Arctic warms, wildfires are proliferating. If one sweeps through a contaminated site, it’ll send up plumes of toxicant-laden smoke. That will in turn exacerbate the thaw: Scientists have previously calculated that in north Alaska, thermokarst formation has accelerated by 60 percent since 1950, thanks to wildfires.
In other words, Langer says, their paper’s projection is “pretty conservative.” Some of the sites might thaw even earlier.
Permafrost is already deforming communities in the far north. Airport runways are sinking, roads are wrinkling, and buildings are crumbling. “It's no longer some ambiguous thing that might happen in the future—it's happening today, even as we speak,” says Schaefer. “If this infrastructure becomes damaged because of thawing permafrost, it's extremely expensive and extremely difficult to resolve. These areas are very remote. You can only do things in certain times of the year, mainly the summer.” 
If thermokarst opens a hole in your runway, for instance, it might cut off surrounding communities that rely on supplies brought in by plane. And if you can’t fly, you can’t get out of many places around the Arctic. “It's not like the Lower 48—if I don't make it to Denver, I'll fly to Colorado Springs,” says Schaefer. “These are all really key infrastructure, and it's really difficult to build and maintain.”
But this new paper is at least a step toward localizing the problem, directing governments to where cleanup might be required. Early scientific sleuthing like this is a start, but a fix will take putting a lot of boots on increasingly soggy ground. “In order to manage something, you have to measure it,” says Miner. The next step would take a massive push—one like the US Environmental Protection Agency began in the 1980s to clean up Superfund sites. But with such a patchwork of nations and corporations responsible for the mess, it’s not clear when—or if—that work would start.
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vigidon56 · 2 months ago
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Earth pollution refers to the contamination of the environment by harmful substances or activities, disrupting ecosystems, harming human health, and degrading natural resources. The main types of pollution are:
1. Air Pollution
Sources: Vehicle emissions, industrial activities, burning fossil fuels, and deforestation.
Impacts: Global warming, respiratory issues, acid rain, and harm to wildlife.
Pollutants: Carbon dioxide (CO₂), methane (CH₄), nitrogen oxides (NOx), and particulate matter.
2. Water Pollution
Sources: Industrial waste, agricultural runoff, sewage, and oil spills.
Impacts: Contaminated drinking water, aquatic life loss, and ecosystem damage.
Pollutants: Plastics, chemicals, heavy metals, and pathogens.
3. Soil Pollution
Sources: Pesticides, fertilizers, industrial waste, and mining activities.
Impacts: Reduced soil fertility, contaminated crops, and biodiversity loss.
Pollutants: Heavy metals, hydrocarbons, and agrochemicals.
4. Noise Pollution
Sources: Traffic, industrial machinery, construction, and urbanization.
Impacts: Stress, hearing loss, and wildlife disruption.
5. Light Pollution
Sources: Excessive artificial lighting in urban areas.
Impacts: Disrupted sleep patterns, energy wastage, and harm to nocturnal ecosystems.
6. Plastic Pollution
Sources: Improper disposal of plastic products.
Impacts: Threats to marine life, land pollution, and microplastic contamination.
7. Radioactive Pollution
Sources: Nuclear accidents, radioactive waste disposal, and nuclear testing.
Impacts: Cancer risks, genetic mutations, and long-lasting environmental damage.
These forms of pollution are interconnected and require collective efforts to reduce their impact on the planet.
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