10. In another climate change article in the online journal Science Express, U.S. researchers reported that soot from industry and forest fires had a dramatic impact on the Arctic climate, starting around the time of the Industrial Revolution. Industrial pollution brought a seven-fold increase in soot - also known as black carbon - in Arctic snow during the late 19th and early 20th centuries, scientists at the Desert Research Institute found. 35'
1. Global warming is forecast to set in with a vengeance after 2009, with at least half of the five following years expected to be hotter than 1998, the warmest year on record, scientists reported on Thursday. 15'