greenhouse

Last year was by far the hottest year in the observation record, with the global average surface temperature 1.24° Celcuis warmer than the late nineteenth century, according to NASA data. This broke the record set the previous year of 1.12°C, which in turn broke the previous mark set in 2014 of 1.01°C.

Although the El Nino conditions of 2015–16 had some influence — perhaps 0.2°C — it is clear that the warming trend is 1°C or more.

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