Here is a short term method to fight global warming that does not involve carbon dioxide
Going Beyond Carbon Dioxide - NYTimes.com
Unlike carbon dioxide, these pollutants are short-lived in the atmosphere. If we stop emitting them, they will disappear in a matter of weeks to a few decades. We have technologies to do this, and, in many cases, laws and institutions to support these cuts. Moreover, President Obama has the executive authority to move ahead aggressively on these pollutants, as he did last year in ordering substantial reductions in auto and truck emissions. By doing so, he may persuade other countries to follow.
Such reductions, if they occurred worldwide, would have the potential to slash the rate of global warming by half by midcentury — equivalent to wiping out the warming we have experienced over the last 50 years. These reductions would also prevent an estimated two to four million deaths from air pollution and avoid billions of dollars of crop loss annually, according to a study commissioned by the United Nations Environment Program and the World Meteorological Organization.
We can reduce black carbon emissions significantly in the next few decades by using particulate filters on cars and trucks and switching to low-sulfur diesel. By employing those strategies, California, for instance, has cut the warming effect from diesel emissions by nearly half since the late 1980s.
