They also point out that:
Heat-trapping carbon dioxide is building up in the atmosphere because burning coal, oil, and natural gas produces far more carbon dioxide than is absorbed by oceans and forests. No scientist disagrees with that.The remind Congress that the National Academy of Sciences has stated,
“Climate change is occurring, is caused largely by human activities . . . and in many cases is already affecting a broad range of human and natural systems.”
In short, "climate change is underway and the severity of the risks we face is compounded by delay."
They reiterate that climate scientists can only provide the science, which they have done. It is up to elected officials to exercise their responsibility to take policy action to combat the realities of climate change. The scientists recommended that Congress "hold hearings to understand climate science and what is says about the likely costs and benefits of action and inaction." Conversely, Congress "should not hold hearings to attempt to intimidate scientists or to substitute ideological judgments for scientific ones."
An article can be read on The Hill. Scroll down for the scientists' letter in its entirety. The full letter can also be read here.