Reuters: Last year tied with 2010 as the hottest on record, in a new sign of long-term global warming stoked by human activities, according to British data on Monday that back up U.S. findings of record-breaking heat in 2014.
The worldwide data, compiled by the Met Office and the University of East Anglia from records stretching back to 1850, showed average surface temperatures last year were 0.56 degree Celsius (1.0 Fahrenheit) above the long-term average of 1961-90.
"This ranks 2014 as the joint warmest...