FollowThe concentration of CO2 in the atmosphere is estimated at 380 ppm and that needs to come down to 350 ppm to limit the global warming to 2 degrees Celsius. And most scientists agree is the acceptable upper limit. A higher temperature would cause the world’s ocean levels to rise and inundate coastal regions all over the world, threatening many dense human habitations. The global CO2 emissions in 2010 were 40 billion tons and continue to rise as more fossil fuel burning power plants are built. Many growing industrial activities and the rising vehicles on the road all continue to emit CO2. This growth cannot be halted as the population from the poorer parts of the world attempts to lift its standards of living.
