While the field of socially responsible investing is growing, there is still a much more limited selection of assets that classify themselves in the category: mutual funds, community development financial institutions, individual stocks, and ETFs are possibilities.  Here is another: a World Bank bond.

Everyone has their own opinion of the work done by the World Bank, which ranges from anti-poverty programs to economic development, to health, to environment.  And if you aren't a fan of the Bank, these bonds are probably not for you.  However, the World Bank is trying to tap into the SRI market "to offer opportunities of investing in development as part of the World Bank’s annual funding program."  Most of their marketing efforts have taken place in Europe and Japan, however they are available in North America as well.  Calvert, after an extensive due diligence process, recently lifted its ban on the bonds, which should boost its presence in the American market.
Photo:maxedaperture, Creative Commons, Flickr