By Mike Sandler, Huffington Post
For environmental groups, the biggest event of the decade will be the international climate change negotiations in Paris in December called COP-21. Enviro groups have been sending out emails, asking their members to sign petitions, and tweeting up a storm (pardon the pun): #ActinParis, #RoadthroughParis, #PathwaytoParis, and so many more. The world will be watching to see if countries reach an agreement or fail again as they did in Copenhagen six years ago.