This question has such an obvious answer – but “yesterday” without a time machine just doesn’t work. So, let’s say “today, right this second” and get our asses in gear.

A very easy to interpret chart provided by the Hadley Centre in the UK – and blogged here on Worldchanging demonstrates the risks of putting off significant corrective action for any amount of time past 2010. Clearly, we’d better figure out how to reduce carbon emissions immediately if we’re going to avoid the rises in temperature that condemn many of the planet’s species including our own.