CO 2, CO2, global warming, climate change, greenhouse effect, greenhouse effect gases, emisiones de gases de efecto invernadero, carbon dioxide, CO2
Climate change, Food supply, Public health, Environmental aspects, Climatic changes, Research, Methane - analysis, Air pollution, Methane, Methods, Emissions control, Air Pollutants - analysis, Ozone - analysis, Soot - analysis, Air Pollution - prevention & control, Air quality management, Troposphere