Greenhouse Gases
Certain atmospheric gases capture longwave radiation emitted from the earth’s surface, and prevent a portion of the earth’s heat energy from returning to space. These ‘greenhouse gases’ blanket the earth, keeping it warm enough to sustain life. The primary greenhouse gases of importance in relation to Australian agriculture are carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O). Agriculture currently accounts for approximately 18% of Australia's greenhouse gas emissions.
