Citaat:
Oorspronkelijk geplaatst door Gun
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Uit Wiki
Citaat:
Scientific understanding of the cause of global warming has been increasing. In its fourth assessment (AR4 2007) of the relevant scientific literature, the Intergovernmental Panel on Climate Change (IPCC) reported that scientists were more than 90% certain that most of global warming was being caused by increasing concentrations of greenhouse gases produced by human activities.[7][8][9] In 2010 that finding was recognized by the national science academies of all major industrialized nations.[10][a]
Affirming these findings in 2013, the IPCC stated that the largest driver of global warming is carbon dioxide (CO2) emissions from fossil fuel combustion, cement production, and land use changes such as deforestation.[12] Its 2013 report states:
Human influence has been detected in warming of the atmosphere and the ocean, in changes in the global water cycle, in reductions in snow and ice, in global mean sea level rise, and in changes in some climate extremes. This evidence for human influence has grown since AR4. It is extremely likely (95-100%) that human influence has been the dominant cause of the observed warming since the mid-20th century. - IPCC AR5 WG1 Summary for Policymakers[13]
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Alle broeikasgassen dus, waarvan vooral CO2, ook CH4, N2O ...:
http://www.eea.europa.eu/data-and-ma...2/assessment-1
1950-2010:
Totaal broeikasgassen:
CO2:
en...
nog ~ 12-13 of 20 jaar extra wachten ?
Citaat:
http://wattsupwiththat.com/2014/08/2...rface-warming/
...
Chen and Tung (2014) are arguing against El Niño and La Niña as the primary cause and saying the variations in sequestration are occurring in the Atlantic and Southern Oceans…the result, primarily, of Atlantic meridional overturning circulation, with which the Atlantic Multidecadal Oscillation (AMO) is associated. The last little tidbit of value is the time periods of similar past cooling periods, 20 to 35 years, and that’s important because the current hiatus has not lasted that long yet.
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