Switchgrass takes a break during the summer. Solving the puzzle of why could help it realize its full potential as a low-cost biofuel crop.

A new study finds that by 2030, less than one-third of the world’s major crop harvests will go directly to feed people.

Allowing the sale of gasoline that’s 15% ethanol year-round won’t have much impact on gas prices, but recent research shows that growing corn for fuel affects the climate – for the worse.

Growing switchgrass on less-productive land could help mitigate climate change. It could also be economically beneficial to farmers, researchers say.

New developments in microalgae cultivation are helping to propel the potential of renewable biofuels to combat climate change.

The US has required motor fuels to contain 10% biofuels since 2005. As this program nears a key milestone in 2022, farm advocates want to expand it while critics want to pare it back or repeal it.

Researchers have modified a microbe so it can make a biofuel using only three ingredients: carbon dioxide, solar panel-generated electricity, and light.

By making the microbes more tolerant to toxic byproducts, researchers show they can use a wider range of feedstocks, beyond corn.

Soot from aeroplane exhausts can linger in the atmosphere, seeding ice clouds which trap heat.