Effect greenhouse What are greenhouse gases (GHG)? Greenhouse gases (GHGs) trap heat within the earth’s atmosphere, contributing to the ‘greenhouse’ effect and causing global warming. These gases include carbon dioxide, methane, nitrous oxide, and water vapor. Industry, including manufacturing, is the second largest global emitter of human-created GHGs. Much of industrial GHG emissions are due to the burning of fossil fuels for heat and power generation.
Why should I care about GHGs?