How can we solve the problem of Global Warming?

Global warming is happening but what mankind does is dwarfed by natural phenomena. Mt. Saint Helens blew up in Washington State and injected more pollutants in the atmosphere in one day than all of mankind's pollutants in the entire industrial history of the human race. The same for other major volcanoes in the Philippines and Mexico. Each eruption duplicated all of mankind's pollutants in history. Yes, global warming is here because the sun is getting warmer, nothing more.

i firmly believe that the global warming is a existant threat to our society.evidence shows the climate is getting warmer and warmer,which exerts influence to farm industry and people's lives.but why some governments and countries are not willing to do something to postpone the process to protect human beings?i guess the reason is the huge expense to change energy resourse and profittable oil industry is hard to abandon.