A trillion tons: The clock is ticking...

Continuing the theme of BIG numbers -  Climate Feedback has links to a new site giving an estimate of the cumulative carbon dioxide emissions over the last 250 years (now somewhere past 530 000 000 000 000 tonnes)- and predicting when this figure will exceed 1 trillion tonnes - a limit calculated to keep average temperature rises below 2 degrees.

The point of course is that we need to see radical change NOW to head off an otherwise inevitable warming of the climate.  Change here meaning global cuts in emissions of between 2.1 and 4.5% per year .    What it doesn't say - but is important to understand - is that the earlier cuts are made the more effective they will be.

What are you doing for your 4.5% cut???