The chemicals known as PFAS are considered a severe threat to human health. 

A University of Queensland-led study shows greenhouse gas emissions from tourism have been growing more than 2 times faster than those from the rest of the global economy.

After storing carbon dioxide in frozen soil for millennia, the Arctic tundra is being transformed by frequent wildfires into an overall source of carbon to the atmosphere, which is already absorbing record levels of heat-trapping fossil fuel pollution.

The Arctic is shaped by its cold, harsh climate and limited daylight hours during winter. But the typically frigid region is warming about four times faster than the rest of the planet, which has facilitated more transportation and increased development.

Microplastics are an environmental hazard found nearly everywhere on Earth, released by the breakdown of tires, clothing, and plastic packaging.

MIT chemical engineers have devised a way to capture methane, a potent greenhouse gas, and convert it into polymers.

Environmental exposure to toxins in the air, water or certain chemicals can increase the risk of ill health effects, including to the human brain.

Scattered across the United States are remnants from almost 170 years of commercial drilling: hundreds of thousands of forgotten oil and gas wells.

Grazing cattle given a seaweed supplement produced close to 40 percent less methane than those fed grass alone, a new study found.

Oregon State University scientists have found a way to more than double the uptake ability of a chemical structure that can be used for scrubbing carbon dioxide from factory flues.