OK, I don't know about biases among the economics community, but this is what the Copenhagen Consensus came up with:
http://www.copenhagenconsensus.com/A...ers_140504.pdf
The Copenhagen Consensus
http://www.copenhagenconsensus.com/Default.aspx was sponsored by The Economist, which is hardly one of the usual lefty discussants in these "ending global crises" dialogues. It's headed by Bjorn Lomborg, an environmentalist who pissed off a lot of other environmentalists about 3 years ago by claiming that global warming wasn't actually that bad. I don't know the details, but I do know that he's a controversial but generally respected figure who respects science more than ideology.
I'm gonna go read that paper now.
Edit: Here is another listing of papers and articles that seem more accessible than the Copenhagen one.
http://www.globalpolicy.org/socecon/trade/subsidies/