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Emissions trading - Law and legislation - United States |
Emissions trading - Law and legislation - European Union countries |
Carbon dioxide mitigation - Law and legislation - United States |
Carbon dioxide mitigation - Law and legislation - European Union countries |
Greenhouse gas mitigation - Law and legislation - United States |
Greenhouse gas mitigation - Law and legislation - European Union countries |
Aeronautics, Commercial - Law and legislation - United States |
Aeronautics, Commercial - Law and legislation - European Union countries |
Aircraft exhaust emissions - Law and legislation - United States |
Aircraft exhaust emissions - Law and legislation - European Union countries |