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.

MELBOURNE, July 13 (UPI) -- Former U.S. Vice President Al Gore on Sunday launched Safe Climate Australia, a think tank aimed at limiting Australia's dependence on coal and helping it to become a zero-carbon economy while also addressing warming global temperatures.

OXFORD, England, July 8 (UPI) -- Former U.S. Vice President Al Gore says World War II-era British Prime Minister Winston Churchill can serve as an inspiration for battling global warming.

WASHINGTON, June 8 (UPI) -- Former U.S. Vice President Al Gore has moved his fight to cool the climate from center stage to behind the scenes, experts say.

LOS ANGELES, May 27 (UPI) -- Two former legal rivals say they have joined forces to restore gay couples' right to marry in California.

SEOUL, May 17 (UPI) -- North Korea must release two journalists before a U.S. envoy visits Pyongyang to revive stalled talks on nuclear disarmament, a diplomat said Sunday.

NASHVILLE, May 15 (UPI) -- Former U.S. Vice President Al Gore, at an event in Nashville, has begun his campaign for passage of tough laws to limit greenhouse gas emissions.