"Figures from the US National Oceanic and Atmospheric Administration (NOAA) use a network of ground-based weather stations to compile their results and recently predicted that this year will outrank 2014 as “the hottest ever”.
However findings from Remote Sensing Systems (RSS) and the University of Alabama (UAH) – which use satellite data – show a strikingly different picture, with neither showing last month as the hottest March on record, nor 2014 as the warmest year yet."
