According to Japan’s Meteorological Agency, 2014 set new inauspicious marks as the hottest year in the global climate record since measures began in 1891.
Temperatures rocketed to 0.27 C above the 1981-2010 average, 0.63 C above the 20th Century average and showed a severe pace of warming of 0.70 C per Century. By comparison, the end of the last ice age featured century scale warming at the rate of 0.04 to 0.05 C every 100 years. So the current rate of warming, according to the JMA measure, is 14-17 times faster. A rapid warm-up driving increasingly severe weather and geophysical changes.
(JMA measure shows 2014 was hottest year on record. Image source JMA.)
NOAA is also expected to show 2014 as hottest year on record. NASA is likely to show 2014 as 1rst, 2nd or 3rd hottest.
2014, according to JMA, was the first record breaker since the super El Nino year of 1998 with 2014 beating out 1998 by 0.05 degrees C. However, the JMA measure also showed that all ten hottest years on record occurred since 1998. Perhaps more telling is the fact that the JMA measure reveals no hiatus in the pace of global atmospheric temperature increase with all years since 1998 at or above the trend line.
Ocean Heat but No El Nino
World ocean surface temperature spikes were the primary driver of the new global surface temperature record with NOAA’s measure showing a majority of months as hottest ever recorded for the world ocean. North Pacific and North Atlantic Ocean temperatures were particularly hot — with a West Coast heat pool driving ocean dead zone events and starfish die-offs alike. In this region and off the US East Coast, Ocean temperature anomalies regularly topped 4 degrees Celisus above average. An extraordinary degree of heat that, in some cases, saw tropical fish species heading into Arctic waters for solace from the record warmth.
(Extraordinary Sea Surface Temperature spikes occurred in late August and mid October, with most of 2014 showing extreme ocean heating. Image source: Climate Reanalyzer.)
El Nino threatened throughout much of the year. But despite a warming near the Equatorial Pacific temperature thresholds failed to fully tip into El Nino. An ominous sign considering that El Nino is the hot phase of atmospheric and surface temperature variability — which may mean that the next El Nino will drive a global high temperature departure even more extreme than 2014’s record setting value.
Severe Weather, Climate Extremes During Hottest Year
2014 also featured some of the worst weather on record with the US experiencing extraordinary dipole anomalies coincident with polar vortex collapse events and severe Arctic warming. Across the Atlantic, the UK experienced both its stormiest winter on record and its hottest year on record. A year hotter than any since 1649 for that nation.
Throughout the world severe droughts ravaged wide regions with the US Southwest still in the grips of the worst multi-year drought in 1,200 years. This year’s California drought was the most recent iteration of this severe event featuring a ridiculously resilient high pressure ridge that has continued to rob California of much of its typical seasonal moisture.
Amazon drying and wildfires also made news this year amidst a severe drought gripping the Sao Paulo megalopolis in Southeastern Brazil. The ongoing drought has shut off monsoonal moisture, forced residents to ration water, and threatens to put city water officials in the position of turning to use of mud for municipal water supplies.
Glaciologists identified massive sections of Antarctic land ice that had reached the point of irreversible collapse. Many of these researchers pointed toward an expanding pool of warm bottom water undermining sea facing glaciers as the culprit for this increasingly rapid glacial melt. A set of circumstances that creates a higher risk of more rapidly rising seas.
To this point, the City of Miami began a combined program of installing pumps to rid streets of flooding at times of high tide and has assessed a property tax to begin its efforts to fight the surge of waters set off by human caused climate change. New studies also found high risk areas such as Hampton Roads in Virginia now featured tens of thousands of properties under such serious threat of flooding that only FEMA will provide them with insurance — a number that will continue to increase along with the sea levels (globally at 3.3 millimeters of increase per year but as high as 7-8 mm per year in some regions).
Ominous Signs the Permafrost is Starting to Disgorge its Carbon Store
Sections of Siberia and Canada experienced extraordinary warmth during winter and spring of 2014 — setting off severe early season wildfires that raged well into late summer. These megafires continue the trend of recent years in which massive blazes rip through the Siberian tundra region disgorging methane and CO2 laden smoke plumes that then encircle the Northern Hemisphere.
For the Northwest Territories of Canada, this past summer represented its worst fire year ever recorded with massive blazes forming towering pyrocumulus clouds over vast burning regions of Arctic permafrost. A fitting backdrop for the Mordor-like activities of Alberta tar sands extraction.
(Very intense wildfires, some the size of smalls states as seen above in the LANCE MODIS shot from July of 2014, raged through Siberian tundra this summer. For reference the bottom edge of frame is 120 miles. Image source: LANCE MODIS.)
In all, about 1,300 gigatons of carbon are stored in the now thawing permafrost, a region Joe Romm is calling the permamelt (perhaps permaburn is a better term). And a human enhanced warming of the Arctic appears to be speeding that carbon’s rate of release into the atmosphere. An impact that could further accelerate human-caused warming. An ignominious circumstance leading to more record warm years and related global climate extremes to come. One that adds urgency to the need to rapidly transition away from fossil fuel burning and human activities that dump massive volumes of carbon into the atmosphere.