The scientific community still is reeling from comments made by EPA administrator Scott Pruitt, who said in an interview that carbon dioxide isn't a primary contributor to global warming. Noah Diffenbaugh, a professor at Stanford University's Woods Institute for the Environment, says climate change and humans' contributions to it are well known.
"To deny that scientific reality is not only a denial of evidence but it also threatens the security and safety of Americans because we are experiencing increasing occurrence of extreme events."
Diffenbaugh points to extreme weather events such as Hurricane Sandy and the California drought as examples of the increasingly severe and dangerous effects of climate change. Most of Michigan experienced the warmest February on record this year, and last week's massive windstorm that knocked out power to nearly one million people is being called one of the most significant weather events in state history.