The answer is right here. (G-d is talking to Gog) "Thus said G-d/elokim: it shall be on that day that ideas will rise in your heart, and you will think of a wicked plan. You will march against a tranquil and peaceful people.......to seize booty and take spoils.......They will say to you, "have you come to seize booty? Is it to take spoils that you have assembled your hordes, to carry off silver and gold, to take livestock and property, to seize great booty?" (Yechezkel 38-39)
The great war of Gog and Magog will be environmentally friendly because all the animals and birds of pray will eat the flesh and blood of Gog's army (Ibid) (Nobody is coming back alive or dead) but I'm afraid that Global Warming will suffer, because it seems that the lands of Esau and Magog (And who knows who) will be on fire for a very long time (7 years).
On the other hand, how big will the carbon footprint be after G-d wipes out 2/3 of the world? And more important, whoever is left after all this will be worshiping G-d, not Global Warming. It remains to be seen if they will let you drink the 44oz Gulp after Moshiach comes. Come to think of it, isn't the Gulp full of ice cubes? What's wrong with ice cubes?
I would not be making such a big stink out of this if Obama's name wasn't mentioned smack in the beginning of the prophecy. see Mar 20, 2011.