The U.N. announced today that global warming gasses have reached record concentrations in the atmosphere:

"Global observations coordinated by WMO show that levels of carbon dioxide, the most abundant greenhouse gas in the atmosphere, continue to increase steadily and show no signs of leveling off," said WMO Secretary-General Michel Jarraud.

In other news, Canada is reporting the warmest winter since records have been kept.

Canada has recorded its warmest winter in nearly six decades of record-keeping, with temperatures that a veteran forecaster said on Monday were almost "un-Canadian."

Environment Canada said temperatures averaged 3.9 degrees Celsius (7 degrees Fahrenheit) warmer than normal from the end of November 2005 to the start of March 2006, and broke the previous record for the country’s warmest winter by almost a full degree.

"The entire country was into this balminess. This kind of benign winter, said David Phillips, Environment Canada’s senior climatologist in Toronto.

Alberta, Saskatchewan and the Northwest Territories basked in temperatures that were more than 6 degrees Celsius above norm.

"We are known as the second coldest country in the world and it was anything but that. It was really quite un-Canadian," Phillips said.