One in four mammals is in danger of disappearing because of habitat loss, hunting and climate change, a global conservation body warned on Monday.

One in four mammals is in danger of disappearing because of habitat loss, hunting and climate change, a global conservation body warned on Monday.

One in four mammals is in danger of disappearing because of habitat loss, hunting and climate change, a global conservation body warned on Monday.

Worldwide emissions of heat-trapping carbon dioxide increased by 3.5 percent per year from 2000 to 2007, nearly four times the growth rate in the 1990s.

An alliance of Western states and Canadian provinces unveiled a draft proposal intended to achieve a 15 percent cut in greenhouse-gas emissions by 2020.

Many Arctic specialists say natural variations in Arctic winds and cloud cover probably had a role in shaping the particularly large ice losses in the past two summers.

A growing array of military leaders, Arctic experts and lawmakers say the United States is losing its ability to patrol and safeguard Arctic waters.

Rising temperatures around the globe are linked to extreme downpours and flooding, researchers said on Thursday.

The explosion of jellyfish populations reflects overfishing, rising sea temperatures and pollution, scientists say.

Will global warming give Greenland its independence?