Yes, the Intergovernmental Panel on Climate Change has said that man is at the root of most of Earth's warming in the last five decades. Still, some researchers say the trend can be attributed to natural causes, including changes in the flux of cosmic rays slamming into our atmosphere, but now, according to Physics World, a pair of U.K. particle physicists have dismissed that idea.
The cosmic-ray-culprit theory is detailed in the article, but the basic idea is that there's a link between these beams and local cloud cover, and that this may be the cause of our warmer temperatures. Now Terry Sloan of the University of Lancaster and Arnold Wolfendale of the University of Durham, both in the U.K., have actually gathered the necessary data, and concluded that the evidence isn't there.
For a more detailed review of the debate, check the analysis at the always-interesting blog realclimate.org or this New Scientist piece, which includes the cosmic-ray hypothesis as one of its 26 myths about climate change.
Finally, someone shoots down that ridiculous theory of Global Warming being just part of a "natural cycle!" At least now we can stop listening to the fools that don't believe in the Warming, and start fixing it.
Except that the Earth hasn't gotten warmer for a decade....
HSTiberius, what is your source? I haven't run across information even close to that.
All of the sites listed in this article pay lip service to scientific objectivity, but nonetheless reveal the writers' bias with terms like "unlike mainstream scientists", etc. There are many theories on climate change. Everyone focuses on CO2 as the culprit "green house gas", but the decision that gases even are the "primary"casue is open for debate. Despite pronouncements from the Intergovernmental Panel on Climate Change to the contrary, Orbital mechanics, sun activity, and the fact that CO2 got picked mostly as the only gas people at Kyoto could agree on as "possibly" able to be affected by human activity all are open for debate. There may not be "evidence to "prove" a "possible" relationship, but there's scant "proof" that CO2 is the culprit as well. Methane is many more times detrimental as a green house gas, (re: flatulence by cattle) but few "scientists" will do more than parrot CO2 and green house effects as the 'obvious" answer, even using so-called research to often just look for evidence to prove their pre-conceived pop-culture hypothesis. How about real objectivity for once instead of name calling. (fools indeed!)
Lack of evidence does not mean its not true, it just means we don't understand it yet. When there is evidence that cosmic rays play no role in global change then I would no longer consider it a possibility.
The source of ALL but a fraction of the Earth’s heat has been putting out more energy, but It can’t possibly be the reason for Globull Warming because (take your pick):
1. One set of guys at the university can’t find the proof.
2. Un like the other 17 celestial bodies in our solar system that are in a heating trend, we’re special
3. Nobody can Demand that “WE Change” if the Sun is the Reason for the current heating trend
4. The Kool-aid drinkers couldn’t feel good about themselves by screaming Everybody (else) has to change their ways…..
5. Nobody could use it as an excuse for more funding.
6. Nobody could use it as an excuse to keep their “Phony Baloney Jobs”
7. AL doesn't have a pretty chart that shows it to be true……
ORAIntel42 - Here is one reference supporting the claim that global temperatures have not risen appreciably over the past decade:
According to the graph posted in the article, the temperature peaked around 1998, dropped a bit and remained relatively stable for the next decade. Interestingly, the data shows a drop in global temperatures from Jan 07 to Jan 08 on the order of 0.595 degrees. The article suggests that variations in solar energy account for the drop.
Needless to say, if the cause of global warming was primarily anthropogenic, one would reasonably expect the temperature to have continued rising over the last decade since greenhouse gas emissions continued to rise at an accelerated rate over that same period.
Global warming is the major environmental problem that we have nowadays. But our country is more focus on how to solve the economic crisis that our country is facing. Today Pres. Obama has come up with the Cash for Clunkers program. He is trying to get dealerships to offer a great cash advance for trading in older vehicles. The idea here is to motivate people to buy vehicles with greater fuel efficiency, or use public transportation. We're entering an age of green practices, and driving around a Pontiac Bonneville the size of an elephant just isn't the greatest idea any more. At any rate, those of us that wish to dispossess ourselves of a gas hog in lieu of something that is a bit lighter on the wallet, Cash for Clunkers might be just what the doctor ordered. Read more on this site: http://personalmoneystore.com/moneyblog/2009/03/30/cash-for-clunkers-obama/.