I think blaming those 100 companies is absolutely acceptable, however I'd still be conscious that thinking that it's all of those companies fault and I won't ma

I think blaming those 100 companies is absolutely acceptable, however I'd still be conscious that thinking that it's all of those companies fault and I won't make a difference anyway isn't right too. You should take the bike/public transport if you can. In the report someone posted in comments you can find that some of the pollutants are the countries and their coal industries. What I would love to have is an option to pay a higher energy bill for green energy. In that case I would imagine the company providing that would invest anything on top of regular energy prices into renewables. Another idea that i really like is "taxing yourself". When I set up my company next month I want to join 1% For the Planet (http://www.onepercentfortheplanet.org/index.php http://www.onepercentfortheplanet.org/index.php) and donate 1% of sales towards environmental non-profits.