WASHINGTON, Nov. 3 (UPI) -- Former U.S. Vice President Al Gore said Tuesday he's proud to invest in green companies and is not a "carbon billionaire" as portrayed in a published report.

DUBAI, United Arab Emirates, Oct. 28 (UPI) -- Former U.S. Vice President Al Gore told a Dubai conference the climate crisis is "the single biggest business opportunity" in history.

NEW YORK, Oct. 27 (UPI) -- Former U.S. Vice President Al Gore has agreed to be a guest on "Late Show with David Letterman," CBS said Tuesday.

ASTANA, Kazakhstan, Oct. 12 (UPI) -- From aboard a space station a red-nosed clown has called to protect the world's scarce drinking water resources.

UPI Almanac for Monday, Oct. 12, 2009.

WASHINGTON, Oct. 9 (UPI) -- Republicans criticized U.S. President Obama's winning the 2009 Nobel Peace Prize Friday and the Democrats lashed out at Republicans for their comments.

OSLO, Norway, Oct. 9 (UPI) -- U.S. President Obama won the 2009 Nobel Peace Prize for "extraordinary efforts to strengthen international diplomacy," the Nobel Committee in Oslo announced.

OSLO, Norway, Oct. 9 (UPI) -- List of Nobel Peace Prize winners:

WASHINGTON, Oct. 4 (UPI) -- When the U.S. Supreme Court handed down the decision in Bush vs. Gore at 10 p.m., Dec. 12, 2000, it sent most major news outlets into a tailspin: They didn't have the slightest idea what it meant.