A more environmentally friendly air conditioner

Summer is in full swing in the U.S., and people are turning up their air conditioners to beat the heat. But the hydrofluorocarbon refrigerants in these and other cooling devices are potent greenhouse gases and major drivers ...

Secret ingredient in durable Maya plaster discovered

A team of mineralogists and geologists at the University of Granada has discovered the secret behind the durability of ancient Maya plaster. In their study, reported in Science Advances, the group studied samples of the ancient ...

Planting trees in wrong places heats the planet: Study

Planting trees in the wrong places can actually contribute to global warming, scientists said on Tuesday, but a new map identifies the best locations to regrow forests and cool the planet.

MOXIE experiment reliably produces oxygen on Mars

On the red and dusty surface of Mars, nearly 100 million miles from Earth, an instrument the size of a lunchbox is proving it can reliably do the work of a small tree.

Dinosaurs survived when CO2 was extremely high. Why can't humans?

How did plants and animals survive around 200 million years ago when the carbon dioxide concentration went up to 6,000 parts per million? Paul Olsen, a geologist and paleontologist at Columbia Climate School's Lamont-Doherty ...

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