I would advice to be careful before stepping in to conclusions. It is very difficult to say if human has caused the global warming effect. If I have understood it correctly, the average temperature of the other planets in this solar system have risen also, which would actually point towards a change in the space weather. Simply put, the measurement time is too short to jump into conclusions. And, the climate is not a "constant", but it is varying all the time.
And the most effective way to cut off the carbon dioxide emissions would be to cut down rainforests and slaughter a load of cows, and destroy several microbes from the ocean crust. These combined, according to my knowledge, contribute significantly more than human in the carbon dioxide emissions. However here I'm open to accurate knowledge if someone really has it. Needless to say, I think these measures would never gain popular support.
In the environmental questions, lots of politics is involved. I would advice people to actually calculate the energy spend in the process without the environmental option and the energy spend in the total chain of the environmental option. Sometimes it is an eye-opening experience.
The pollution, is another thing. I personally like clean surroundings and would like to have them as such later also. I have nothing against blocking the dangerous micro-particles away from the air, but there is need for research before one can be sure to block the correct particles away. Having lived two months in one particularly badly polluted city I wouldn't wish that for my worst enemy.