Environmental aspects Petroleum industry and trade Environmental conditions 6 Social conditions 5 Environmental protection 4 Indians of South America 4 Environmental degradation 3 tuilleadh ... Environmental policy 3 Oil spills 3 Cofán Indians 2 Politics and government 2 Social aspects 2 Trials, litigation, etc 2 Achuar Indians 1 Actions and defenses 1 Aspectos ambientales 1 Attitudes 1 Chevron Corporation 1 Cofán Indians 1 Economic conditions 1 Economic policy 1 Environmental racism 1 Environmentalism 1 Forest conservation 1 Government relations 1 Health aspects 1 Indigenous peoples 1 Industria del petroleo y el comercio 1 Land tenure 1 Liability for oil pollution damages 1 lúide ...