Amazon Watch an earlier court's dismissal on the basis of "forum non conveniens." Thus, legal proceedings were started in Ecuador in 2003. Amazon Watch supports the Ecuadorian plaintiffs by publishing a press kit alleging that Chevron (corporate successor to Texaco) should be held accountable for the dumping of of toxic waste water into a region of Ecuador's Amazon rainforest inhabited by more than 30,000 people – purported to be one of the largest oil related contaminations ever, far exceeding that of the Exxon Valdez disaster. A 2011 decision in Ecuador ordered Chevron to pay $9.5 billion. Ecuador's Supreme Court in 2013 affirmed
Fuel oil effects caused by fine particulates, and all buildings using fuel oil No. 6 had been converted to less polluting fuel by the end of 2015. Residual fuel's use in electrical generation has also decreased. In 1973, residual fuel oil produced 16.8% of the electricity in the US. By 1983, it had fallen to 6.2%, and , electricity production from all forms of petroleum, including diesel and residual fuel, is only 3% of total production. The decline is the result of price competition with natural gas and environmental restrictions on emissions. For power plants, the costs of heating the oil, extra