Evangelicals Global Warming and Gospel

What do you make of the new evangelical movement to stop the humanity-caused warming of the globe and equating the necessity of doing so and the truthfulness of the enterprise with the necessity and truthfulness of sharing the gospel? What do you think of how I phrased that question? Is it an honest question based on how they are portraying themselves and if so, what do you think of it/them and equating it -the scientific accuracy of human causation of global warming- with the authority of the gospel?

This equating of authorities strikes me as the kind of civil-religion and weddedness to a 'cause' that has a lot of potential to undermine their authority and the authority of whatever their understanding of gospel might be. Should newer scientific discoveries and measuring sophistication shift current viewpoint, or (tongue in cheek) like when a democrat president is in office and the economy is growing for instance or when the trading in fossil fuels helps 'fund' bigger goverment and bigger research grants for instance, whatever might they do and say and equate with the gospel then?!

I also confess that I wonder about the science and the wisdom of this variety of environmentalism by evangelicals. It isn't as loopy as tree-hugging, but I'm not sure it is a wise or prudent tact. It might gather short-term favor with a few in the academe for a season but will it really come with respect or be seen as a pragmatic move when for instance this or that preacher signs-on to this or that scientific theory? I'm inclined to think Charles Colson has this one correct. and that the Cornwall Declaration on Environmental Stewardship is a far more balanced and less 'civil religionist' position paper.