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Some pretty bad news for the arctic, 2.9 C increase since the begginning of the 20th century.
Highlighed are links to more details.
Quote:
HighlightsAir temperatures in all seasons between October 2014 and September 2015 exceeded 3°C above average over broad areas of the Arctic, while the annual average air temperature (+1.3°) over land was the highest since 1900.
The 2nd lowest June snow cover extent on land continued a decrease that dates back to 1979, while river discharge from the great rivers of Eurasia and North America has increased during that time.
Melting occurred over more than 50% of the Greenland Ice Sheet for the first time since the exceptional melting of 2012, and glaciers terminating in the ocean showed an increase in ice velocity and decrease in area.
Walruses are negatively affected by loss of sea ice habitat but positively affected by reduced hunting pressure, while sea ice loss and rising temperatures in the Barents Sea are causing a poleward shift in fish communities.
well considering that we have been warming for the last 15,000 years since the peak of the last major ice age, with a few cooling spots inbetween, but still general warming, we are following the NATURAL CYCLE of the climate
the arctic was ice free before, a dozen times
Based on the paleoclimate record from ice and ocean cores, the last warm period in the Arctic peaked about 8,000 years ago, during the so-called Holocene Thermal Maximum. Studies suggest that as recent as 5,500 years ago, the Arctic had less summertime sea ice than today.
We also know 125,000 years ago, during the height of the last major interglacial period, known as the Eemian, the Arctic was free of summertime ice . Temperatures in the Arctic were higher than now and sea level was also 2 to 4 yards (6 to 12 feet) higher than it is today because the Greenland and Antarctic ice
sheets had mostly melted.
Wintertime Antarctic sea ice is increasing at a small to small moderate rate and with substantial year-to-year variation. Specifically, the months of May, June, July, September and October show trends of increasing sea ice extent that are just slightly above the mean year-to-year variability. In more technical terms, the trends are statistically significant at the 95% level, although small (~1% per decade as of 2014).
Wintertime Antarctic sea ice is increasing at a small to small moderate rate and with substantial year-to-year variation. Specifically, the months of May, June, July, September and October show trends of increasing sea ice extent that are just slightly above the mean year-to-year variability. In more technical terms, the trends are statistically significant at the 95% level, although small (~1% per decade as of 2014).
well considering that we have been warming for the last 15,000 years since the peak of the last major ice age, with a few cooling spots inbetween, but still general warming, we are following the NATURAL CYCLE of the climate
the arctic was ice free before, a dozen times
Based on the paleoclimate record from ice and ocean cores, the last warm period in the Arctic peaked about 8,000 years ago, during the so-called Holocene Thermal Maximum. Studies suggest that as recent as 5,500 years ago, the Arctic had less summertime sea ice than today.
We also know 125,000 years ago, during the height of the last major interglacial period, known as the Eemian, the Arctic was free of summertime ice . Temperatures in the Arctic were higher than now and sea level was also 2 to 4 yards (6 to 12 feet) higher than it is today because the Greenland and Antarctic ice
sheets had mostly melted.
Wintertime Antarctic sea ice is increasing at a small to small moderate rate and with substantial year-to-year variation. Specifically, the months of May, June, July, September and October show trends of increasing sea ice extent that are just slightly above the mean year-to-year variability. In more technical terms, the trends are statistically significant at the 95% level, although small (~1% per decade as of 2014).
What happened to the time before 1980? I figure we humans have really been destroying the planet since at least the Industrial Revolution? What do the data say going back that far?
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