Turn America green by volunteering your time to elect Sen. Barack Obama to be the next president.

Click here to Volunteer in the final 96 hours

Here are a couple of reasons why we shouldn't take anything for granted.

* Record turnouts are expected on Election Day, but it's unclear if polling places are ready for the deluge of new voters. With long waits and new voting technology in several states, polls can't predict how voters will react.
* Polls -- even exit polls -- got it wrong in 2004. Not much has changed: On the eve of the New Hampshire primary, the polls showed Barack Obama up by 8.3 points in the average of all state polls. The media had started to write off Hillary Clinton and declare Obama the winner. By the end of the day, Hillary Clinton was declared the winner with a margin of victory of 2.6 points. The campaign that was supposed to be "over" went on for another five months.

The lesson of this polling story is clear. It ain't over until it's over.

So as we work for an environmental leader in the White House and champions in Congress, don't take anything for granted.

Do what you can. Join us on the campaign trail so that on November 5th, you'll be able to say that we did enough.

Click here to Volunteer in the final 96 hours

Thanks as always for making it all possible.