Guardian: NASA and NOAA have just reported that global surface temperatures in 2014 were the hottest on record. That also means 2014 was likely the hottest the Earth has been in millennia, and perhaps as much as 100,000 years.
But whats really remarkable is that 2014 set this record without the aid of an El Nio event. El Nio events create conditions in which sea surface and hence global surface temperatures are anomalously hot. We call this part of the Earths internal variability because these events...