Global Warming: Good News, Bad News

This article is rather interesting:  
http://revmodo.com/2012/08/31/reflecting-sunlight-fight-climate-change/   
It describes some technically feasible ways to reflect sunlight away from the earth, so as to reduce global warming.  

Most people are unaware that on average, the past few years have been relatively cool.  According to some experts, the reason is that, in their race to industrialize, the Chinese have been burning so much coal!  The coal is impure and contains sulfur.  When the coal burns, it adds more carbon dioxide (the major greenhouse gas) to the atmosphere, which ultimately will exacerbate the situation.  However, the sulfur in the coal burns, too, and turns into sulfur dioxide. The sulfur dioxide also goes into the atmosphere, but it does a great job of reflecting sunlight.  Thus, in a sense, the technology is already proven.

So the good news is that we can do it; the bad news is that if we can do it, then why stop putting carbon dioxide into the air?  And will a reflective band-aid work as well as hoped?  Check with Murphy's Law...