2014 topped both 2005 & 2010 as the hottest since record keeping began, continuing the trend that the top 10 years have all occurred since 1998.
A look at how El Niño influences global weather patterns.
A graphical look at the top indicators of a warming world.
Record lows are outpacing record highs since last year. This is becoming rarer in a warming world.
The amount of carbon dioxide in the atmosphere has a strong correlation with rising temperatures.
If global warming continues unabated, only 6 of the 19 previous host cities could host the Winter Games again by the 2080s.
The 10 warmest years on record globally have all happened since 1998, with 2010 still on top as the warmest of all.
Despite the recent slowdown in warming rate, this past decade was the world's warmest on record.