Global Warming

These days, people are talking a lot about global warming and also greenhouse effect. But what are they?

CO2 and other gases in the atmosphere trap heat energy that would otherwise escape to space. This is called the greenhouse effect. Most people agree the greenhouse effect will increase the Earth's average global temperature. This is called global warming.
(from Here )

BBC radio four is talking about how huge the volume is or how many mols are there for 1 ton CO2 and how many tons a car makes in a year's time, this afternoon. I don't think it makes much sense since plants are digesting CO2 anyway, so , if there is the balance, then there would be no problem.
So, the change of the figures that CO2 's concentration in the air in the past decades will persuade more people.

So, I believe there are two ways of Anti Global Warming rather than one:

I: Reduce the waste, reduce the pollution that we make to the earth, reuse resources, recycle them after usage.
II: Plant more plants, especially protect the sea plants, since they even contribute more to the CO'2 consumption and created more O2 for us.