Why 350ppm CO2 is the target figure

350-org-bill-mckibben-nasa-scientist-james-hansen-ppm-parts-per-million-atmospheric-c02-global-campaign-multiligual-middlebury-college-environmental-studies-scholarIn a recent article on Planet Green online (which is one of the best online resources for planet-friendly food, health, fashion, transportation, travel and work solutions) noted author and Bill McKibben noted during Earth Month, top scientist James Hansen and his NASA team have stated that anything above 350 parts per million “is not compatible with the planet ‘on which civilization developed and to which life is adapted.'”

In other words, we need to be under that number, or else. Right now, we’re well above it at 387 parts per million, and that’s a problem.

It’s worth reading this short article about why 350 is the number that will save the planet. I hope that you will read it.  Short and to the point.


See this short video which is informative and a good communication tool about the 350ppm target.

This is the generation that must act

Foreword to The New Climate Deal, A Pocket Guide, by the WWF:

This is the generation that must stop the spread of pollution

that is slowly killing the planet…

Rolling back the tide of a warming planet

is a responsibility that we have to ourselves,

to our children, and all of those who

will inherit creation long after we are gone.”

-Barack Obama, Strasbourg. April 2009


You have likely seen the number 350 pop up when talking about carbon emissions. The number is key to survival of the planet – it represents the level of carbon dioxide in the atmosphere that is safe to have if we expect life to continue to thrive.  Here is an excellent link to an article about the science of 350ppm carbon dioxide, and why this is so important.   350-The Number That Will Save The Planet