To what degree do scientists concur about rapid climate change and the role human activity has in causing it?
According to a recent survey by the Intergovernmental Panel on Climate Change (IPCC), 97 percent of climate scientists agree that global climate change is occurring and that human activity is the primary cause. The survey reached thousands of scientists from all over the world who specialize in different aspects of climate science. A separate study by the National Academy of the Sciences drew the same conclusions.
Scientists may disagree about certain aspects of climate change; for example, some scientists think that the outcomes will slowly increase like turning a dial, while other scientists think it will be more like flipping a switch. That is a normal part of the scientific process, though, not a sign that they disagree that global climate change is occurring.