Ecuadorean plaintiffs filed a lawsuit in Canada as a first move outside their country to try and enforce an $18 billion court judgment against oil company Chevron for polluting the Amazon...Issued by an Ecuadorean court in the jungle region at the heart of the dispute, the ruling was upheld by an appeals court in January - but Chevron has appealed to Ecuador's Supreme Court. Since U.S.-based Chevron no longer has assets in Ecuador, the plaintiffs are trying to get the ruling enforced outside the OPEC-member country. The new lawsuit, filed in the Superior Court of Justice in Ontario, targets Chevron and various subsidiaries that together hold significant assets in Canada…Chevron denies the accusations. It says Texaco did not pollute the jungle, and that it properly cleaned up all the pits for which it was responsible.