The newly appointed chief of the Environmental Protection Agency, Scott Pruitt, said Thursday he does not believe carbon dioxide is a "primary contributor" to climate change.
Many experts disagree with him, including the agency he now runs.
The EPA's website on causes of climate change says: "Carbon dioxide is the primary greenhouse gas that is contributing to recent climate change."
WATCH | This isn't entirely new for Pruitt. He said as much during a Senate hearing before he was appointed head of the EPA.
We don't know that yet. ... We need to continue the debate and continue the review and the analysis.
While the vast majority of scientific organizations believe climate change is both real and caused largely by increased emissions of carbon dioxide, some have argued that hypothesis is false or irrelevant. A study from the Oregon Institute of Science and Medicine argued carbon dioxide increases led to more plant growth.
CO2 and other gases... trap heat in the atmosphere, so it is no surprise that we are now witnessing an increase in global average temperature.
However, the American Institute of Physics and Union of Concerned Scientists argue that increased carbon dioxide levels are contributing significantly to global temperature increases, and that is harmful, in stark opposition to OISM's view.
Former EPA adminsitrator Gina McCarthy criticized Pruitt for his comments.
Climate scientists were blunt and grave in their assessment of his remarks.
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