The fact global warming started when there were almost no people and certainly no automobiles is a good indication that human activity is not the cause. That also means - for good or bad - we cannot be the solution. Any money raised by "carbon offsets" or "carbon taxes" is basically money wasted - unless you view AGW research as an employment program.

Lost in the debate are the needs to reduce pollution (especially in countries like China & India) and to study the Earth so we can adjust to its changes.

Note that the Earth appears to be at the end of a warming cycle and can be expected to begin cooling "soon" (in geological terms). That could be tomorrow or it could be thousands of years in the future. Global temperature is the result of interactions between the Earth and the Sun that we don’t understand and can’t predict.