The divestment movement among shareholders is now targeting fossil fuels as a new category of (environmental) sin stocks. Although climate change legislation seems dead in the water, a new movement is calling for institutional investors to divest from fossil fuels. As the proverbial long-term investors, pension funds and endowments are increasingly moving away from dirty fuels - not an easy thing to do within traditional asset allocation models.

http://www.bloomberg.com/news/2013-11-20/coal-seen-as-new-tobacco-sparking-investor-backlash-commodities.html