oil

CEO David O'Reilly has been hyping Chevron's efforts to go green, including the opening of a biodiesel plant in Texas, a $2.5 billion three-year committment to develop alternative fuels and more ge

• Our contribution to reducing local air pollution starts with reducing the emissions from our facilities that contribute to smog and acid rain - nitrous oxide (NOx), sulphur dioxide (SO2) and v

BP is credited with being one of the first companies to make a significant grab for the green ti

• Invested around $5 million of his inheritance in a growing chain of luxury ecotourism resorts in four African nations. He hopes to turn the hotels into an economic model for

• Invested $31 billion in the Bill and Melinda Gates Foundation, with a portion of this money being used to combat global warming and promote alternative energy.
• Investing in wind farms<