I guess you are messing up with the wrong meaning of this phrase. Saving the earth means saving it for the people and the next generations. Things require proper attention and are looked after so they may not get worse in the future when it would be more difficult and next to impossible to fix them soon; if we keep focusing on saving the earth, it would mean saving the upcoming (as well as current) generations.
1. Does a volcano give a fuck about less pollution?
2. Do tsunamis and Earth quakes care as well?
If I may ask, where do the "pollutants" come from? Not this very mother earth?
If the carbon has been part of the entire age of the earth, then why is it all of a sudden dangerous?
The Earth can self-heal if need be. A good example is the self-healing that happened after the Chernobyl disaster. What we should focus on is avoiding the senseless dick measuring contests (wars)
All the "save the earth', "save the planet" jibba-jabba is just a money making venture for the organizations involved. It's always about money.