Conserve energy
The main reason for the release of the greenhouse gasses is the waste of energy.

Unplug you chargers.
Even when you are not charging your phone, ipod or any other toy the charger still uses energy.

Avoid flying
Planes are one of the main contributors to global warming. Tons of fuel are used each day just to fly us around the world, which releases tremendous amounts of greenhouse gasses. It is always better to travel with a train because they are greener.

Limit your driving time
We all know that finding a parking spot is very hard.Besides that cars are one of the biggest pollutants of the planet. As the population of the world increases, so does the number of cars being used. Try  biking to work , walking or using  public transportation. You will not only socialize your lifestyle more but you will also be proud that today you were green and did something for our small, beautiful planet.

Inflate your tires
If you have to drive a car, at least inflate your tires. When the tires are deflated the car uses more gas.

Do not drive aggressively
When you are driving aggressively you tend to push the gas more which uses more fuel. You are just wasting nerves and resources, and nothing good will come out if you think that you are a NASCAR racer.

Buy Local
The transportation of everything increases its price. Buy locally, go to farmers markets, and buy in season.

Change you light bulbs
Nowadays there is a huge selection of energy saving light bulbs. From florescent bulbs to LEDs. New energy efficient bulbs give you better and brighter light and have a longer lifespan. Most of the manufactures even give warranty for them. Learn about the new technologies and do not be afraid to try something new.