methane

"This is a concern because methane is a very potent greenhouse gas, 84 times more potent than carbon dioxide over a 20-year period," said Ian Bruce of the David Suzuki Foundation.

Time is running out for the feds to decide on whether to approve the Pacific NorthWest LNG project, which could open the way for one of the largest infrastructure investments in Canadian history.

New research is raising some new questions about the carbon cycle and impacts of global warming in the Arctic region of North America.

After some two million tonnes of methane spewed into the air for months, SolCalGas finally sealed the Aliso Canyon leak Thursday afternoon

Some 100 people gathered at the top of a volcano in Iceland on Sunday for an unusual funeral. The victim: A 700-year-old, six-mile glacier. Cause of death: climate change.