From thinkProgress.org
There is a famous saying in science: “extraordinary claims require extraordinary evidence.” In this case, the arguments for climate change are backed up by such an astounding degree of science and evidence, that one, or even a few, papers that claim to refute the science of climate change deserve careful scrutiny. As the author of Skeptico notes:
“Extraordinary claims require extraordinary evidence because they usually contradict claims that are backed by extraordinary evidence. The evidence for the extraordinary claim must support the new claim as well as explain why the old claims that are now being abandoned, previously appeared to be correct.”