How much Is carbon dioxide is in air?

The concentration of carbon dioxide  is approximately 390 parts per million by volume as of 2010 and rose by 1.9 parts per million  during 2000–2009.  We need to stop this World wide problem before it become a massive extinction. We need to solve it before human being will be a part of extinction. All this problem is our fault so we start it and we going finish it. So stop this before it get out of control and start digging us out of this to brighter tomorrow.