[lbo-talk] Nicolas Stern's What Is To Be Done on climate change

[Michael Pollak]

On Sat, 12 Jul 2008, John Thornton wrote:


> We're already at 387 ppm CO2. Incidentally we reached 455 ppm CO2e in 
> 2005 so we're definitely not only 430 ppm CO2e currently.

How can we be at 387 ppm and have reached 455 in 2005?

Michael