Future high temperature extremes and soil moisture conditions may cause some regions to become more suitable for rainfed, or non-irrigated, agriculture, while causing other areas to lose suitable farmland, according to a new U.S. Geological Survey study.  

These future conditions will cause an overall increase in the area suitable to support rainfed agriculture within dryland areas. Increases are projected in North America, western Asia, eastern Asia and South America. In contrast, suitable areas are projected to decline in European dryland areas.

Around 245 BCE Ptolemy III, ruler of the Ptolemaic Kingdom in Egypt, made a decision that still puzzles many historians: After pursuing a successful military campaign against the kingdom’s nemesis, the Seleucid Empire, centred mainly in present-day Syria and Iraq, the king suddenly decided to return home. This about-face “changed everything about Near-East history,” says Joseph Manning, a historian at Yale University.

The economically important big bluestem grass — a dominant prairie grass and a major forage grass for cattle — is predicted to reduce its growth and stature by up to 60 percent percent in the next 75 years because of climate change, according to a study involving Kansas State University researchers.

When you picture a horse, you may imagine it grazing contentedly in a grassy pasture. Grazing lets horses move around naturally outdoors and socialize with other horses. And grass is an easily available, nutritious feed that horses like eating. If you have the land, providing pasture for horses is less costly than buying hay.

Researchers at Umeå University and Wageningen University have discovered how plants can defend themselves against aphids. They recorded aphid behavior on video, and identified a plant protein that keeps aphids from feeding. The results have been published in the journal the Plant Cell.

The color red is splashed across gardens, forests and farms, attracting pollinators with bright hues, signaling ripe fruit and delighting vegetable and flower gardeners alike.

Looks can be deceiving.

Look at a hundred lakes in the agricultural heartland of the United States and you will likely see green lakes surrounded by green fields. The nitrogen and phosphorus in agricultural fertilizers that help crops grow also fuel the growth of algae and cyanobacteria that in excess can turn lakes the color of pea soup.

If you want to do something about global warming, look under your feet. Managed well, soil’s ability to trap carbon dioxide is potentially much greater than previously estimated, according to Stanford researchers who claim the resource could “significantly” offset increasing global emissions. They call for a reversal of federal cutbacks to related research programs to learn more about this valuable resource.

If farmers could no longer control weeds with existing herbicides, Americans would take notice pretty quickly

Join NOAA all month long as we celebrate the bounty of sustainable seafood! From finfish to shellfish, Americans love seafood—and it's easy to see why. This healthy food choice provides key nutrients and proteins for children and adults. The seafood caught and farmed in the United States comes from some of the most sustainably managed fisheries in the world.