We are talkin' global climate change. Solar activity forcing is a regional phenomenon, found in Da Nile Basin only.
PARIS -- Six years is not a long time in science. Data may be collected, a paper or two published or a PhD earned. But in the six years since the last Intergovernmental Panel on Climate Charge (IPCC) report was released, the science and certainty of global warming has grown markedly.,,,,
These observational improvements also extend into space, all the way to the sun, where scientists have used satellite data to better understand the amount of solar energy--and its impact here on Earth. "We therefore can make a comparison statement for the first time and say it is likely that solar forcing is at least five times smaller than the combined human influence," Forster continues. "Over the last 50 years, in particular, the natural forcing (solar plus volcanic) is most certainly negative. Meanwhile we've seen this large positive forcing from greenhouse gases."
sciam.com
Recent Warming But No Trend in Galactic Cosmic Rays
Filed under: Climate Science Sun-earth connections— rasmus @ 8:14 am
There is little evidence for a connection between solar activity (as inferred from trends in galactic cosmic rays) and recent global warming.
realclimate.org
A critique on Veizer’s Celestial Climate Driver
Filed under: Climate Science Paleoclimate Sun-earth connections— rasmus @ 5:11 am
In a paper in Geoscience Canada, Veizer (2005) states that ‘the multitude of empirical observations favours celestial phenomena as the most important driver of terrestrial climate on most time scales‘.
realclimate.org
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Another study on solar influence
Filed under: Climate Science Sun-earth connections— rasmus @ 9:27 am
In a recent paper in Geophysical Research Letters, Scafetta & West (S&W) estimate that as much as 25-35% of the global warming in the 1980-2000 period can be attributed changes in the solar output.....
realclimate.org
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We have alread discussed the connection between solar activity (here , here, here, and here), and this new analysis does not alter our previous conclusions: that there is not much evidence pointing to the sun being responsible for the warming since the 1950s. |
