The Most Important Thing

Nobody is better on this than Bill McKibben:

Global Warming's Terrifying New Math 

in Rolling Stone

and Mark Bittman's fine commentary

The Endless Summer

in the NYTimes

with the possible exception of nuclear proliferation, 

this really is the most important challenge

SUPPORT 350.org

& in the "hopeful" category there is this too just in:
US Leads the World in CO2 Reductions (!)