The main culprit in terms of global warming is Carbon dioxide. This is made naturally as it is needed for our survival but the extra CO2 that causes so many problems is created by man as part of the burning of fossil fuels. Power plants burning coal and cars burning gas release 80% of all this unwanted Carbon. The rest comes from airplanes, forest fires and a few volcanoes.

The next biggest problem as a greenhouse gas is Methane. Methane is a flammable gas that is released as part of certain types of agriculture such as growing rice in flooded fields and cattle farming. Methane is also released when frozen ground and ice thaw out. Sometimes peat bogs and other frozen earth have been storing Methane for thousands of years. When those areas warm up Methane is released. What warms them up? Global warming caused by greenhouse gases.

That same warming turns liquid H20 (water) into gaseous H20 called water vapor. And just like all the other greenhouses gases, when you put too much in the atmosphere the water vapor collects heat and then radiates it back to the earth.

The other major greenhouse gas is NO2, nitrous oxide, what is often called laughing gas. Nitrous Oxide as with all of the other greenhouse gases occurs naturally in small amounts. It is created in harmful amounts by factories making products like nylon and nitric acid.