Dear all, a major new study was just published in Science, and written up by Joe Romm over at ThinkProgress. I highly recommend this as a new cornerstone in your advocacy work as it makes certain that a 2 degree world is no longer possible, and a 4 degree world certain unless we stop what we're doing right now.

A stable climate enabled the development of modern civilization, global
agriculture, and a world that could sustain a vast population. Now, the
most comprehensive “
Reconstruction of Regional and Global Temperature for the Past 11,300 Years”
ever done reveals just how stable the climate has been — and just how
destabilizing manmade carbon pollution has been and will continue to be
unless we dramatically reverse emissions trends.... thanks primarily to carbon pollution, the temperature is changing 50
times faster than it did during the time modern civilization and
agriculture developed, a time when humans figured out where the climate
conditions — and rivers and sea levels — were most suited for living and
farming. We are headed for 7 to 11°F warming this century on our
current emissions path...
... more... read the full article...
... that enabled Civilization...