It is news that four former EPA administrators who served under Republican presidents wrote an op-ed published in the New York Times making "A Republican Case for Climate Change." Whether their persuasiveness will persuade may be in doubt -- but the fact that they tried may say a lot about the current US political situation.

"Each of us took turns over the past 43 years running the Environmental Protection Agency. We served Republican presidents, but we have a message that transcends political affiliation: the United States must move now on substantive steps to curb climate change, at home and internationally.

There is no longer any credible scientific debate about the basic facts: our world continues to warm, with the last decade the hottest in modern records, and the deep ocean warming faster than the earth’s atmosphere. Sea level is rising. Arctic Sea ice is melting years faster than projected.

The costs of inaction are undeniable. The lines of scientific evidence grow only stronger and more numerous. And the window of time remaining to act is growing smaller: delay could mean that warming becomes 'locked in.'  "

William D. Ruckelshaus, Lee M. Thomas, William K. Reilly and Christine Todd Whitman write an Op-Ed for the New York Times August 1, 2013. [2]