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31 March 2020

Flooding Stunted 2019 Cropland Growing Season, Resulting in More Atmospheric CO2

A new study determines the impact of the severe 2019 floods, and offers scientists a new tool for measuring regional-scale carbon dioxide absorption by plants.

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9 January 2019

Scientists breathalyze cows to measure methane emissions

Cattle burps are the number two source of methane in the U.S., but it’s tricky to measure exactly how much methane one cow produces in a day. That’s why researchers at the USDA-ARS Conservation and Production Research Laboratory in Bushland, Texas set out to use a number of different methane assessment methods — including a “breathalyzer for cows” — to determine the methane emissions of free-range cattle on Oklahoma grasslands.

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29 August 2017

Unprecedented levels of nitrogen could pose danger to Earth’s environment

Humankind’s contribution to the amount of nitrogen available to plants on land is now five times higher than it was 60 years ago, mainly due to increases in the synthetic production of fertilizer and nitrogen-producing crops, according to a new study. This increase in nitrogen parallels the exponential growth of atmospheric carbon, the main culprit behind climate change, and could pose as much of a danger to Earth’s environment, according to the study’s authors.

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12 April 2017

One-fifth of world’s population depends on food imports

Countries unable to feed their growing populations are increasingly importing food to meet demand, a new study finds. Nearly half of the world’s population lives in areas where imports compensate for food scarcity and one-fifth of the world now depends upon these imports to survive, according to the new study.

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