New paper shows N. Greenland was warmer during the early 20th century (1920-1940) & during Medieval Warm Period
…Greenland Temperatures Weaken Theory CO2 Drives Climate
Greenland Temperatures Weaken Theory CO2 Drives Climate
http://notrickszone.com/2015/06/29/greenland-temperatures-weaken-theory-co2-drives-climate/
By Ed Caryl In my last article, we discussed the Greenland ice core temperature record. In this article we will discuss the Greenland thermometer record. All the long record thermometer readings are from villages and stations on the coast. Some of these records go back to the early 1800’s, though GISTemp only posts records going back to 1880. Here is plot of seven stations. Annual averages were downloaded from GISTemp and converted to annual anomalies using the 1951 to 1965 average for each as the baseline, the only years all seven stations had in common. Figure 1 plots seven Greenland temperature records, their average (the thin black trace), and a five-year centered average of the average (wide bright blue trace). This result agrees with other papers that were found, for example Box et al 2009. Considering that land surface station records warm an average 40% greater than the global land-ocean average, and that Northern Latitude stations warm an average 40% higher than the global land-ocean average, with Arctic stations averaging higher than that, it makes sense that this combination of surface stations in the northern latitudes will warm at twice the rate of the global average. Figure 2 is from Box et al 2009, figure 11. Jason Box’s paper shows that temperatures before 1880 were generally warmer than the decade after 1880, only about one to one and a half degrees colder than at present. The interesting thing is the step-change in temperature between 1920 and 1930. Greenland temperatures stepped upward by two degrees in this decade, the same step as in the 1990 to 2000 decade. But there was no rise in CO2 in those years. Both intervals are preceded by volcanic activity, as shown in Box’s figure 11. The volcanic activity is blamed for the cooling. But there was cooling for four decades after 1930 without any major volcanoes. If the lack of volcanic activity is to be blamed for the steps upward in temperature, but temperature declined for four decades without volcanoes, what is left for CO2? There are several logical twists and turns illustrated here. If volcanic eruptions are blamed for the cooling periods, especially in Greenland, with lack of eruptions blamed for warming, only some of the cooling dips are explained. The other cooling episodes are presumably because of ocean current/temperature cycles or the sun. This leaves …
Claim: Danish Researchers Debunk Greenland Climate Myth
Claim: Danish Researchers Debunk Greenland Climate Myth
http://wattsupwiththat.com/2015/03/18/claim-danish-researchers-debunk-greenland-climate-myth
Norse Settlers Adapted To Cold Conditions Hvalsey Church (Danish: Hvalsø Kirke) was a church in the abandoned Greenlandic Norse settlement of Hvalsey (now modern-day Qaqortoq). The best preserved Norse ruins in Greenland, the Church was also the location of the last written record of the Greenlandic Norse, a wedding in September 1408. A new comprehensive […]
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Greenland Approaches A Record For Mass Gain
After Another Record Snowfall, Greenland Approaches A Record For Mass Gain
Greenland Ice Sheet Surface Mass Budget: DMI Greenland just gained 12 billion tons of snow in one day, and is approaching a record amount of mass gain. This is the part where alarmists say “glaciers are calving faster than new ice … Continue reading →
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Greenland’s Ice Sheet Defies Critics With 4-Year High
…Greenland Ice Melt Geothermal, Not Manmade
http://www.climatechangedispatch.com/greenland-ice-melt-is-geothermal-not-manmade.html…
Autumn Greenland Ice Sheet Mass Gain At A Record High
Autumn Greenland Ice Sheet Mass Gain At A Record High
http://stevengoddard.wordpress.com/2014/11/30/autumn-greenland-ice-sheet-mass-gain-at-a-record-high
The Greenland Ice Sheet gained a record amount of ice and snow this autumn – more than 200 billion tons. This lowers sea level, and is the exact opposite of what experts forecast, and say is happening. Greenland Ice Sheet Surface Mass Budget: DMI This is a big change from 1940, when the glaciers of […]
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UN Recycling 60 Year Old Propaganda: 2014 UN Claim: Melting ‘ice sheets could swamp coastal regions’- 1952 Claim: ‘Polar icecaps were melting at an astonishing…rate threatening to swamp seaports’
…Analysis: NASA – Erasing The Arctic Past – ‘In 1950, everyone knew about the massive warming in the Arctic’
http://stevengoddard.wordpress.com/2014/08/21/nasa-erasing-the-arctic-past/…
Did Greenland & W Antarctic Ice Sheet Loss Suddenly Double?
According to the IPCC, the Greenland + Antarctic ice sheets contain a total of 27.6 x 10^6 cubic km of ice, equivalent to 63.9 meters sea level rise. If this paper is correct, the combined ice sheets are losing 503/27600000 or 0.0018% of their mass per year, equivalent to 1.16 mm/yr sea level rise or 4.5 inches per century, hardly alarming, and almost exactly what the IPCC 2013 report claimed for the sea level rise contribution of 0.6 mm/yr from Greenland and 0.41 mm/yr from Antarctica, a total of 1.01 mm/yr.
Further, if there was an actual doubling of ice loss from Greenland and Antarctica, that should have been found in a corresponding acceleration of sea level rise. No such acceleration has been found and Cazenave et al and Chen et al have instead found a recent deceleration of sea level rise, the opposite of what would be expected if the ice sheets had accelerated ice loss. In addition, worldwide glacier melt has decelerated since 1950, also the opposite of predictions of AGW theory.
Did Greenland & W Antarctic Ice Sheet Loss Suddenly Double?
http://hockeyschtick.blogspot.com/2014/08/did-greenland-w-antarctic-ice-sheet.html
No
Joe Romm and other alarmist news sources are gushing over a new paper published in the Cryosphere which they claim shows
World’s Largest Ice Sheets Melting at Fastest Rates in Recorded History!
Greenland And West Antarctic Ice Sheet Loss More Than Doubled In Last Five Years
But what does the paper actually show? The paper compares ice volume changes between three different satellite altimetry databases. As the authors note, one must be very careful about drawing conclusions in comparing databases from different measurement sources and which use different analysis methods. In this case, the CryoSat satellite database only covers a very short 2011-early 2014 time period of a little over 3 years and does not overlap the ICESat database from 2003-2009 or the IMBIE database from 2003-2008. Therefore, the CryoSat database cannot be directly calibrated against the other two databases and comparisons must be done with caution.
Table 4 shows the following volume changes in cubic kilometers/year of the Greenland + Antarctic ice sheets from the 3 datasets and time periods:
IMBIE: 2003-2008 -164
ICESat: 2003-2009 -207
CryoSat: 2011-2014 -503
and does show an increase in volume loss of 296 km^3yr-1 between the 2003-2009 ICESat database and the short 2011-2014 CryoSat database. Regardless of all the caveats of comparing these short, non-overlapping datasets, if …