How to Stop Global Warming:

• Exchange one regular light bulb with a compact fluorescent light bulb.
• Drive less. Walk, bike, or carpool.
• Recycle more.
• Check your tires. Properly inflated tires can improve gas mileage by more than 3%.
• Use less hot water. A lot of energy is used to hear water.
• Avoid products with a lot of packaging.
• Adjust your thermostat.
• Plant a tree.
• Turn off electronic devices when you aren’t using them.

Source: http://www.climatecrisis.net/.