A colleague was designing a booklet cover on the subject "Black carbon – India's Achilles Heel".. and we started discussing design ideas for it. i had a feeling that Black Carbon couldn't be just India's problem.. so i googled it, and happened upon this neat little info-graphic video(by StopSoot.org) about how its a worldwide issue. have a look
"Soot, also known as black carbon, is the second-leading cause of global warming after carbon dioxide, and it's totally preventable. We already have the technology to avoid producing it; it's just a matter of using it.
For more information, go to StopSoot.org." -from the original Earthjustice youtube page