According to the National Oceanic and Atmospheric Administration, Earth experienced its second warmest surface temperatures during 2017, and its warmest year since 1880 without an El Niño event.
El Niño increases global air temperatures by transferring heat from the ocean into the atmosphere, but last year, there was no such event. NOAA’s National Centers for Environmental Information (NCEI) calculated that the average global temperature across both land and ocean surfaces for 2017 was 1.5 F degrees above the average of 13.9 F, making 2017 the second warmest on record.
The Japan Meteorological Agency found that 2017 was the third warmest year since records started in 1880, however, NASA also found 2017 was the second warmest on record behind 2016. NASA uses slightly different measuring techniques incorporating more of the Arctic, which they say was extremely warm in 2017.
In 2014, meteorological sites around the globe found it, at the time, to be a record-breaking year for warmth, however, over the past three years, global heat records continue to exceed those of 2014, which many say is the effects of human-produced greenhouse gases.
According to NOAA’s National Centers for Environmental Information, the last month of 2017 came in as the Earth’s third warmest since 1880. A report by Aon Benfield calculates global weather disasters for the month of December 2017 alone reached more than $1 billion USD.
For the year, the broker company calculated an annual weather disaster loss of $28 billion USD, up from the average of $22 billion of previous years.