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Harvest Public Media is a reporting collaboration focused on issues of food, fuel and field. Based at KCUR in Kansas City, Harvest covers these agriculture-related topics through an expanding network of reporters and partner stations throughout the Midwest.Most Harvest Public Media stories begin with radio- regular reports are aired on member stations in the Midwest. But Harvest also explores issues through online analyses, television documentaries and features, podcasts, photography, video, blogs and social networking. They are committed to the highest journalistic standards. Click here to read their ethics standards.Harvest Public Media was launched in 2010 with the support of a grant from the Corporation for Public Broadcasting. Today, the collaboration is supported by CPB, the partner stations, and contributions from underwriters and individuals.Tri States Public Radio is an associate partner of Harvest Public Media. You can play an important role in helping Harvest Public Media and Tri States Public Radio improve our coverage of food, field and fuel issues by joining the Harvest Network. Learn more here.

Climate Change Could Cut Output Of Staple Crops Like Corn And Wheat

Corn yields could drop 7 percent globally for every 1 degree Celsius rise in global temperature, according to a recent study.
Corn yields could drop 7 percent globally for every 1 degree Celsius rise in global temperature, according to a recent study.

A new study found that staple crops like corn and wheat, which provide a large proportion of the world’s calories and U.S. farmers’ output, will likely see negative impacts from rising global temperatures.

 

An international group of researchers compiled dozens of studies and found that every time global temperatures go up 1 degree Celsius – not quite 2 degrees Fahrenheit – crop yields fall. On average, the study found a drop of 3 percent for soybeans, 6 percent for wheat and 7 percent for corn.

 

International agreements, such as the Paris climate accord, hope to limit the global temperature rise to 2 degrees Celsius.

 

The study focused on the impact of the world’s temperature rising. It did not account for theboost plants can seefrom higher concentrations of carbon dioxide in the air.

 

As Inside Climate News reports:

Twenty-nine researchers from across the globe conducted the analysis of more than 70 studies—covering various types of models, approaches and locations across the world—and found that existing research all led, consistently, in one direction. "What you're seeing here is many different lines of evidence pointing to the same conclusion," saidAlexander Ruane, one of the study's co-authors and research scientist at the NASA Goddard Institute for Space Studies in New York.

 

 

Researchers used projections to calculate global average temperatures and yields. In some cases, yields went up. Writ large, however, the study found overall declines. Yields for corn and soybeans would decline more in the U.S. than in other parts of the world.

 

The study, published in the Proceedings of the National Academy of Sciences, suggests any gains American farmers earn by adopting better farming technology will first have to make up for what’s lost to a warmer world.

 

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