Greenhouse

Geoengineering schemes aimed at staving off the worst effects of climate change wouldn't do much to ease the situation and could actually make global warming worse, a new model study suggests.

The federal government has underestimated methane emissions from the United States by 50 percent for the past 20 years, according to a comprehensive new study.

Levels of methane, a climate-changing greenhouse gas, have been rising since 2007. But federal budget woes are shrinking the monitoring network that tracks greenhouse gases such as methane.

A type of greenhouse gas that is thought to have a potent impact on global warming was detected in trace amounts in the atmosphere for the first time, according to a new study.

Water poured onto crops in the Western United States may evaporate and be carried by winds to the East Coast, making the North Atlantic summers slightly wetter, new research suggests.

Bacteria that hitch a ride on methane bubbles from the ocean floor may devour the greenhouse gas before it has a chance to enter the atmosphere, new research suggests.

Thanks in large part to gas wells and cow farms, the United States is spewing 50 percent more methane than previous estimates have measured, according to a new study.

A recent report from the United Nations projects global population could hit 11 billion people by the year 2100. How might this rapid growth affect climate change?

The world is on track to emit nearly 40 billion tons of carbon in 2013 — a record increase that is 61 percent above 1990 levels, a new report suggests.

US carbon dioxide emissions have dropped for the fifth year in the last seven, with the second largest yearly drop seen since 1990, according to newly released government numbers.