Earth Conservation - What are we doing to avoid the warm future?

It is well known that our planet is going towards a warmer future, literally. As poetic as it may sound, raising our planet's temperature in one degree celsius can bring serious and devastating effects, let's not even think in raising 2 or 3 degrees.
ANY action that we as people can take to help reduce our detrimental effect over this planet will be greatly appreciated by ourselves, but most importantly by our children and grand children.
For these and other reasons, world organizations such as the UN are working constantly in many fronts. One of them is to raise consciousness over the effect of Carbon dioxide over our atmosphere. Visit the website designed for the celebration of the World Environmental Day 2008 - June 5, 2008:
http://www.unep.org/wed/2008/english/