Nature is not static, but causes its own, internally-generated changes - both in climate and in biological systems.
Roy SpencerTwice I have testified in congress that unbiased funding on the subject of the causes of warming would be much closer to a reality if 50% of that money was devoted to finding natural reasons for climate change.
Roy SpencerMan-made global warming was a potential serious threat, and NASA wanted Congress to fund new satellites to study the problem. It was a team effort to get that accomplished.
Roy SpencerWe have no idea what's natural and what's man made. [...] There is no fingerprint of human-caused warming.
Roy SpencerPoliticians and some of the scientists like to say that there's a consensus now on global warming or the science has been settled, but you have to ask them, what is there a consensus on? Because it really makes a difference. What are you talking about? The only consensus I`m aware of is that it's warmed in the last century. They completely ignore the fact that there's this thing called the Oregon petition that was signed by 19,000 professionals and scientists who don't agree with the idea that we are causing climate change.
Roy Spencer