Net Zero

Anthropogenic GHG Emissions: Definition and ContextAnthropogenic greenhouse gas (GHG) emissions are those stemming directly or indirectly from human activities—chiefly the extraction and combustion of fossil fuels (coal, oil, natural gas), industrial processes (cement production, chemical manufacturing), agricultural practices (rice paddies, livestock enteric fermentation), land-use change (deforestation, soil disturbance), and waste management. When fossil carbon is...

The natural volumetric composition of Earth’s atmosphere is predominantly nitrogen (78%), Oxygen (21%), and other “trace” gases in small concentrations. Two of these trace gases, carbon dioxide (CO₂) and methane (CH₄) have the property of absorbing and retaining radiant energy coming from the sun, as well as heat from earth. This characteristic causes energy to...