Al Gore's environmental organization Live Earth has taken money to raise awareness about the need for clean water from a controversial chemicals company involved in the aftermath of one of the world's worst pollution disasters. (Time: 1:42)
Dow Chemical, the US firm which now owns the leaking pesticides factory responsible for thousands of deaths in Bhopal, India, sponsored Live Earth events in 150 cities in 2009. The event aimed to raise money for clean water programs. But research by environmental organizations has found dangerous levels of highly toxic chemicals in rivers, lakes and other water supplies close to several other factories owned by Dow and its subsidiaries in countries including the United States, Brazil and South Africa.