U.S. must rally to fight climate change, Thomas Friedman says. While sharing a taxi cab with Al Gore, New York Times columnist Thomas Friedman asked the former vice president - who received the Nobel Peace Prize in 2007 for drawing the world's attention to the problem of global warming - for a written apology [News Source]

Antarctica hit by climate change. In its landmark Fourth Assessment Report, the IPCC declared in 2007 that human influence on climate "has been detected in every continent except Antarctica". Now a study shows that our impact can be found even in the last wilderness. [News Source]

Study links human activity to polar warming. Human activity and, in particular, the production of greenhouse gases can be linked definitively to warming in parts of the Arctic and Antarctic, according to a new study that makes the controversial connection for the first time. [News Source]

Polar report confirms manmade link to global warming. No corner of the Earth is immune from the effects of global warming, according to a new study that confirms manmade temperature rises in both the Arctic and Antarctic regions. [News Source]

Man is to blame for Antarctic temperature rise. Man has been blamed for the first time for rising temperatures in the Antarctic. [News Source]

Humans causing polar melting, researchers claim. An international team says it has proven humans are driving up temperatures in both the Arctic and Antarctic. [News Source]

Man-made climate change seen in Antarctica, Arctic. Both Antarctica and the Arctic are getting less icy because of global warming, scientists said on Thursday in a study that extends evidence of man-made climate change to every continent. [News Source]

Antarctica feeling the heat too, says study. Antarctica, which seemed to have largely escaped the global warming affecting the rest of the planet, is melting too, according to a study. [News Source]

Eat grass, more gas. Contrary to the previously held belief, researchers at the University of Manitoba have discovered grain-fed cows produce less methane than cattle that feast on grass. [News Source]

Analysis - Obama to go green, but push could be costly. The green revolution has ground to a halt with the collapse in oil prices, right? Don't bet on it if Barack Obama makes it to the White House with an agenda to create jobs while weaning the country off foreign oil. [News Source]

Promises, Promises: Chasing an elusive pledge. It will be 35 years next week since President Richard Nixon, responding to an Arab oil embargo, vowed to make the United States energy independent - and do it in seven years. America is still waiting. [News Source]