Global Warming

Global warming is caused by the greenhouse gas effect. Greenhouse gas absorbs heat from the sun and traps heat. Greenhouse gases are made by carbon dioxide (CO2), methane (CH4) and other things in the air.  When we use things like cars, TVs, video games, they all make air pollution and greenhouse gases. Because the earth is getting too warm, the ice is melting and killing the animals living there.

Do you know any other greenhouse gases?