The biggest threat to the world is desertification. This isn't a conspiracy or political talking point & people on both sides of the political spectrum know it.
If we (the world) continue to kill the soil & practice "modern" farming technics, the deserts will continue to spread faster & faster. I'm willing to bet that this
is having a negative effect on our weather.
Most people don't understand or refuse to admit that plant transpiration is what provides us with our moisture. Here in the southwest, the Monsoon is created by the vegetation in N. Mexico. It is a complex & fragile system to say the least.
I & many of my Right Wing friends have always been real (NOT POLITICAL!) environmentalist types. We know things like coal, pipelines, & all this other garbage that the environmentalist wannabes, who do nothing with their own two hands, continue to push is stupid & will fix nothing. They never think for themselves & will continue to eat crap, drink crap, hurt the planet, & make a sustainable future harder & harder to achieve. It's not about worthless Hippie crap, peace & love, taxes, or any of the rest of the B.S. This is about real science & hard work.
If you fee so inclined, check out Permaculture (permanent agriculture). It is the way things should be done. It would have a bigger impact on all fronts than anything else we can do. Everybody will buy into it too. The movement has as many Preppers as it has self proclaimed Hippy types.
Here are some video links. They're kinda long, but you will see some really impressive projects -
http://www.youtube.com/watch?v=xzTHjlueqFI
http://www.youtube.com/watch?v=F0UNYGi4v8Q
http://www.youtube.com/watch?v=OYQwenUNsYM
http://www.geofflawton.com/sq/15449-geoff-lawton
There are many Permaculture Designers & lots of projects out there. Mr. Lawton is my favorite though.
Keep an open mind.