Well, Gee, this is sure a shame

We all want a good clean earth, but we don't all make it our religion.  I can't really commisserate with Bill McKibben on the lack he is worried about. In fact, I rejoice. I do not believe anything we have done has contributed to Global Warming.  I believe we are arrogant to think we could. So I can only be happy more hasn't been done on the behalf of goddess Mother Earth. 
From the Washington Post:

On Earth Day, the environmental movement needs repairs

Forty years in, we're losing.

This weekend, when speakers at Earth Day gatherings across the country hearken back to the first celebration in 1970, they'll recall great victories: above all, cleaner air and cleaner water for Americans.

But for 20 years now, global warming has been the most important environmental issue -- arguably the most important issue the planet has ever faced. And there we can boast an unblemished bipartisan record of accomplishing absolutely nothing. Read more.