Greenhouse Gas Emissions : Overview of Greenhouse Gases : Carbon Dioxide Emissions United States Environmental Protection Agency
IS/ISO 14065: Greenhouse gases—Requirements for greenhouse gas validation and verification bodies for use in accreditation or other forms of recognition Bureau of Indian Standards
"Study on Environmental Threat by Emission of Greenhouse Gases" (16-May-1997) Rajya Sabha Secretariat
Greenhouse Gas Emissions : Overview of Greenhouse Gases : Methane Emissions United States Environmental Protection Agency