Alaska and Canada wildfires, 6 July 2015

Editing by Philippa Fletcher OSLO (Reuters) - Thawing permafrost can release nitrous oxide, also known as laughing gas, a contributor to climate change that has been largely overlooked in the Arctic, a study showed on Sunday. The report in the...

By Keith Miller, NBC News correspondent8 February 2012  ATHENS – When you touch down in Athens, the signs of an economic slump are immediately evident. The arrivals hall in the domestic terminal is almost deserted, with flights within Greece having...

By ELLIE HARVEYApril 27, 2010 NOT since the April days of 1922 has Sydney had such a run of warm weather so late in autumn. Last Friday, the temperature reached 30.7 degrees in the city - the hottest day this...