For Barack Obama, climate change is change we can believe in.

Speakers at the Democrats’ convention this week, by and large, have taken as dim a view of fossil fuels as the Iraq war. If you were quaffing your brew at each mention of "alternative energy" from the podium, you’d have a lot of recycling to do by now. The green theme climaxes tonight, with environmental hero Al Gore setting the stage for the candidate’s address.

Would you believe that there are places and times when power companies generate so much renewable energy that they give it away?

In west Texas and Illinois, when the wind blows at night and nuclear plants run around-the-clock, power generators produce more electricity than people need. This oversupply “has forced electricity prices into the negative range,” an expert explains—meaning that some customers are paid to use electricity.

President Barack Obama has said he will go to Copenhagen next month to secure an international deal on climate change.

A key global treaty to stop global warming almost collapsed last week after poorer nations threatened to walk out unless rich countries like America agree to cut their emissions.

You may not be able to reduce global warming, end pollution and save endangered species single-handedly, but by choosing to live an Eco-Friendly lifestyle you can do a lot every day to help achieve those goals.

And by making wise choices about how you live, and the amount of energy and natural resources you consume, you send a clear message to businesses, politicians and government agencies that value you as a customer, constituent and citizen.