SCIENCE IN THE NEWS DAILY

Polar Warming 'Caused by Humans'

from the BBC News Online

The rise in temperatures at Earth's poles has for the first time been attributed directly to human activities, according to a study. The work, by an international team, is published in Nature Geoscience journal.

In 2007, the UN's climate change body presented strong scientific evidence the rise in average global temperature is mostly due to human activities. ... At the time, there was not sufficient evidence to say this for sure about the Arctic and Antarctic.

Now that gap in research has been plugged, according to scientists who carried out a detailed analysis of temperature variations at both poles. Their study indicates that humans have indeed contributed to warming in both regions.