I just read Bill McKibben’s call for using a numerical target as a universal alarm bell signaling our need to lower our carbon emissions. The number 350 represents the upper limit for a “safe” amount of carbon dioxide (in parts per million) to stop the unpredictable unraveling of our global ecosystem from human induced climate change. Today we’re at 385 parts per million of carbon dioxide in the atmosphere.
He’s launched a global campaign to create change, to motivate people and politicians to make personal and policy changes needed to reduce our carbon emissions. It’s at 350.org.
