2010 set to be Canada's warmest year Much of the Canadian Arctic had its warmest year on record in 2010, the World Meteorological Organization says. (Nathan Denette/Canadian Press) By the time it's over, 2010 will likely rank as one of the three warmest years since reliable climate data began being collected, with Canada on track to record its warmest year ever, the UN's weather agency says. Data from the World Meteorological Organization provides further evidence of a warming trend that has been seen for many years. Scientists blame a steady rise in man-made greenhouse gases, which have been building up in the atmosphere, trapping heat in. During the first 10 months of 2010, the global combined sea surface and land surface air temperature was 0.55 degrees C above the 1961–1990 annual average of 14 degrees C. So far, the WMO says 2010’s nominal temperature value is the highest on record, placing it slightly ahead of two other warmer-than-average years,1998 and 2005. The fin...