Climate report struggles with temperature quirks
Scientists working on a landmark U.N. report on climate change are struggling over how to address a wrinkle in the meteorological data that has given ammunition to global-warming skeptics: The heating of Earth's surface appears to have slowed in the past 15 years even though greenhouse gas emissions keep rising.
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#1 Sep 19, 2013
FYI: The Intergovernmental Panel on Climate Change report is expected to assert that global warming is continuing. It is also expected to affirm with greater certainty than ever before the link between global warming and human activity.
Since: Apr 08
"the green troll"
#2 Sep 19, 2013
The only thing scientists are struggling to explain is why the world is still warming at a time when there are so many-short term cooling effects:
...lower solar output
...aerosols from volcanic activity
...aerosols from China burning coal
...more heat entering the deep ocean
The fact that the world is still warming tells you there is something very powerful driving warming that can overcome these combined temporary cooling effects.
#3 Sep 21, 2013
Jonathan Lynn, a spokesman for the IPCC, declined to comment on the content of the report because it hasn't been made final, but said it would provide "a comprehensive picture of all the science relevant to climate change."
The IPCC draft report says it is "extremely likely" that human influence caused more than half of the warming observed since the 1950s, an upgrade from "very likely" in the last IPCC report in 2007.
A final version will be presented at the end of the panel's meeting in Stockholm next week.
#4 Sep 21, 2013
Scientist are NOT "struggling to explain temperature quirks". They are quite expected variations in AIR temperature (not AGW) that were expected. They first made the popular media during the 1998 El_Nino that warmed the air rapidly (compared to the baseline AGW), and now are reacting to the 2010 and 2012 La-Nina with relative cooling (*thoughh still warming). A reduction in the trend line from a short term 'noise' that scientists know will be short lived (by climate standards of 30 years for air temperture trends)
#5 Sep 21, 2013
The CO2 levels at 400 ppm reminds us of the problem getting bigger and stronger. Whose struggle is it? The humanity's.
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