What gives out greenhouse gases?

The burning of fossil fuels (coal, oil and natural gas) in industry, transport and the generation of electricity, which releases carbon dioxide.

Stuff you do everyday ride the bus drive a car turn on the lights all sorts of important stuff requires outputing greenhouse gases cars and buses give out the gas CO2 (carbon dioxide) power plants that make the energy for the computer your on now outputs CO2 as the most common greenhouse gas is carbon dioxide there is a plan called the Kyoto Protocal that helps by slowing down the output of six major greenhouse gases.