Katherine Bagley does a nice summary of several recent pronouncements here:

GOP Not Listening to Its Own Scientists on Climate Change

A rather straight up diagnosis of the problem:

[…]

The same goes for Calvin DeWitt, an environmental scientist who researches climate change at the University of Wisconsin-Madison. DeWitt is a vocal evangelical Christian and although he won’t affiliate himself with a single party, he does admit his religious and cultural beliefs fall in line with the majority of Republicans. He has played a significant role in nearly every intersection of climate scientists with evangelicals and politicians, including the creation of the Evangelical Climate Initiative in 2006, a group of over 300 senior evangelical leaders who believe the nation needs to address global warming.

In recent years, however, DeWitt’s efforts have been thwarted, he told InsideClimate News. “The times I’ve tried to reach out to politicians, I have not been welcome. I think the basic problem is that it no longer pays to talk with scientists, but to those who fund you.”

[…]

Recommend the whole article.