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As climate change continues and farming areas get hotter and drier—as expected in the Southern Great Plains and Southwest—erosion could increasingly take the form of dust storms when bone-dry fields are plowed. Preventing soil loss from farms and its damaging consequences is possible, and it starts with keeping farm soils covered.
Industrial agricultural practices such as tillage (plowing) and leaving fields bare between growing seasons degrade soil structure, reduce water infiltration, lower water storage capacity, and increase runoff (the flow of water across the soil’s surface).
But European settlers were remarkably effective at shooting and poisoning prairie dogs and plowing up their burrows. By creating tunnels, theyre also creating a thermal refuge, said Hila Shamon, the director of the Smithsonians Great Plains Science Program and principal investigator of the colony-mapping project.
As climate change intensifies, people are “panicking,” said Kristen Davis, a professor of civil and environmental engineering and earth system science at University of California, Irvine. coast, according to a report from the National Academies of Sciences, Engineering, and Medicine. And we have to allow time for science to catch up.”
They have to work outside jobs to get health insurance; when they come home, they must feed the animals, repair the fences, help a cow give birth and plow the fields. “It’s The increasing cost of health care has limited the ability of some U.S. farmers and ranchers across the U.S.
The plowing of agricultural land during the 19th and 20th century released vast stores of carbon dioxide , only a small part of which has since been returned to the soil. The previous National Academy of Sciences study on links between human and soil health has been deleted, as it is already under way.
Others say science has yet to prove that climate-smart practices truly reduce greenhouse gas emissions. “We Farmland itself was also once a major source of atmospheric carbon dioxide as farmers cleared carbon-rich forests and plowed up prairie soils, releasing carbon from trees and the ground. 28, 2019. “It
And they raise the risk of additional acres being plowed up to compensate for the lower yields. The Nature Conservancy, Project Drawdown and the National Academies of Sciences, Engineering and Medicine have all based optimistic claims of cover crops’ potential benefits largely on this study. percent for corn and 3.5
The industry and its allies responded, adopting tactics used for years by the fossil fuel companies to fight the climate-change narrative: dispute the science, tar critics as radicals, and trumpet the essentialness of the product—meat feeds the world. The narrative around meat in America was shifting.
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