Global warming is a real problem in today's world. Global Warming occurs due to rising temperatures around the Earth's atmosphere. We can do some efforts to stop global warming. Like use solar system appliances. Plant trees as much as possible. Use electricity very carefully, switch off the lights when not in the home. these will save energy which is require for preparation of food. Unplug your appliances. Many times things such as a cellphone charger, TV, and laptop cord still use power even when the main _object_ is shut off.
http://www.globalwarming360.net/