Multiple datasets have confirmed it was the warmest October on record for the globe, keeping the planet on a course towards its toastiest year.
NOAA will release its report on October global temperatures next week, and will surely rank the past month at or near the top of the list.
Last month, NOAA published a chart (below) indicating the global temperature for the remaining three months of the year need only average among the top 10 warmest for 2014 to be the warmest year on record. Considering the October results in so far, a record warm year almost seems inevitable unless temperatures radically tank in November and December.
The global warmth in recent months has been spurred by record warm global oceans.
The University of Hawaii at Manao announced Thursday the global oceans were warmest on record for the summer. “[Ocean] temperatures even exceed those of the record-breaking 1998 El Nino year,” said Axel Timmermann, a climate scientist. “The 2014 global ocean warming is mostly due to the North Pacific, which has warmed far beyond any recorded value and has shifted hurricane tracks, weakened trade winds, and produced coral bleaching in the Hawaiian Islands.”
Should 2014 set a new global temperature record, it might signal the end of the so-called hiatus in which the rate of temperature rise has slowed, likely due to a cool phase in Pacific ocean temperatures which is (at least temporarily) reversing.