Tag Archive for '350 parts per million'

350.org founder Bill McKibben speaks at Power Shift 2011 about the urgency of reducing carbon emissions

April 18th, 2011 by Richard Lord

Bill McKibben said “the science is clear. We have a number, 350 parts per million. 350 – the most important number on Earth as the NASA team put it in January 2008.” “Any value for carbon in the atmosphere greater than 350 parts per million is not compatible with the planet on which civilisation developed, […]