Sulfur to slow down global warming?

http://www.sciencedaily.com/releases/2006/07/060727180326.htm

http://www.livescience.com/environment/060727_inject_sulfur.html

Injecting sulfur into the atmosphere to slow down global warming is worthy of serious consideration, according to Nobel laureate Paul Crutzen from the Max Planck Institute for Chemistry in Germany and the Scripps Institution of Oceanography, University of California at San Diego.
...He adds that his experiment should only be used as an emergency measure: “the possibility of the albedo enhancement scheme should not be used to justify inadequate climate policies but merely to create a possibility to combat potentially drastic climate heating.”

But it is easy to predict that some people will use it to justify inadequate climate policies. And what are the side effects? Eg., will this sulfur end up as acid rain when it falls back to earth on forest fires?