Researchers conduct a cost-benefit analysis of expanded irrigation of corn and soybeans under future climate. With climate change, irrigating more crops in the United States will be critical to sustaining future yields, as drought conditions are likely to increase due to warmer temperatures and s
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With climate change, irrigating more crops in the United States will be critical to sustaining future yields, as drought conditions are likely to increase due to warmer temperatures and shifting precipitation patterns. Yet less than 20% of croplands are equipped for irrigation. A Dartmouth-led study finds that by the middle of the 21st century under a moderate greenhouse gas emissions scenario, the benefits of expanded irrigation will outweigh the costs of installation and operation over an expanded portion of current U.S. croplands. The study maps where it makes the most sense to install irrigation for corn and soybeans and if there's enough water to do so. The findings are published in Communications Earth & Environment, an open-access journal from Nature Portfolio.
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