AP Photo 7 months ago

Former Vice President Al gore, center, hugs Laura Ling as Gore and Ling are joined by former President Bill Clinton, left, and Euna Lee, right, at Bob Hope Airport in Burbank, Calif. , Wednesday, Aug. 5, 2009. Lee and Ling, the two American journalists freed by North Korea, returned...

AP Photo 7 months ago

Former President Bill Clinton is greeted by former Vice President Al Gore as he arrives with freed journalists Laura Ling and Euna Lee at the Bob Hope Airport in Los Angeles, Calif. , on Wednesday, Aug. 5, 2009. The two journalists for Gore's Current TV were pardoned following a visit...

Getty Images 7 months ago

BURBANK, CA - AUGUST 05: Freed journalist Euna Lee holds her daughter Hana as she greets former Vice President Al Gore at Hangar 25 on August 5, 2009 in Burbank, California. Lee and Laura Ling of San Francisco based Current TV, were both arrested by North Korea in March for illegally...

Getty Images 7 months ago

BURBANK, CA - AUGUST 05: Former President Bill Clinton alonside Al Gore talk with journalists Laura Ling and Euna Lee at Hangar 25 on August 5, 2009 in Burbank, California after being released by North Korean authorities yesterday. Ling and Lee, of San Francisco based Current TV, were...

Getty Images 7 months ago

BURBANK, CA - AUGUST 05: Journalists Laura Ling, husband Iain Clayton and mother Mary Ling walk with former President Bill Clinton as Ling arrives with Euna Lee who is talking with former Vice President Al Gore at Hangar 25 on August 5, 2009 in Burbank, California after being...

Getty Images 7 months ago

BURBANK, CA - AUGUST 05: Journalists Laura Ling shakes hands with former Vice President Al Gore as she arrives with Euna Lee at Hangar 25 on August 5, 2009 in Burbank, California after being released by North Korean authorities yesterday. Ling and Lee, of San Francisco based Current...

Getty Images 8 months ago

Australian Prime Minister Kevin Rudd (L) speaks to the media during a joint press conference with former US vice-president and climate change campaigner Al Gore (R) in Sydney on July 15, 2009. Rudd warned China had significant economic interests at stake in the case of a mining...

Australia's Prime Minister Kevin Rudd (L) talks to former U.S. vice president and environmental activist Al Gore at his office in central Sydney July 15, 2009.

Australia's Prime Minister Kevin Rudd (L) listens to former U.S. vice president and environmental activist Al Gore during a news conference after their meeting in central Sydney July 15, 2009.

AP Photo 8 months ago

Former U.S. vise president Al Gore, right, wipes sweat off as Australia's Prime Minister Kevin Rudd speaks during a joint press conference in Sydney, Australia, Wednesday, July 15, 2009. Gore has backed the Rudd government's decision to push ahead with emissions trading legislation...

AP Photo 8 months ago

Australia's Prime Minister Kevin Rudd, left, and former Vise President Al Gore appear for a press conference in Sydney, Australia, Wednesday, July 15, 2009. Gore has backed the Rudd government's decision to push ahead with emissions trading legislation before the global December...

Former United States Vice-President Al Gore speaks at a news conference in Melbourne July 12, 2009. Gore talked about The Climate Project Asia Pacific Summit, which brings together almost 300 community leaders from 19 countries across the region this weekend in Melbourne, ahead of...

AP Photo 8 months ago

In this image released by the United Nations taken on Tuesday Dec. 15, 2009 shows U.N. Secretary-General Ban Ki-moon, left, speaking with former US Vice President Al Gore in Copenhagen. In a showdown between the world's two largest polluters, China accused the United States and...

AP Photo 9 months ago

FILE - This Dec. 10, 2008, file photo, shows U.S. former Vice President Al Gore during a ceremony at Milan city hall, Italy, The sentencing of two American journalists to 12 years' hard labor in North Korea on Monday, June 8, 2009, sets the stage for possible negotiations with the...

Former U.S. Vice President Al Gore (R) watches Danish Queen Margrethe pouring coffee for U.N. Secretary General Ban Ki-Moon (L) at the World Business Summit on Climate Change at Bella Center in Copenhagen May 24, 2009. Business leaders met in Denmark on Sunday to try to unite behind a...

Former U.S. Vice President and Nobel laureate Al Gore speaks at a ministerial meeting of the Arctic Council in Tromsoe, northern Norway, April 29, 2009.

Getty Images 10 months ago

Former US vice president and Nobel prize-winning climate champion Al Gore, delivers a speech during a ministerial meeting of the Arctic Council in Tromsoe, northern Norway, on April 29, 2009. Al Gore called today for rapid action to prevent the potentially irreversible melting of the...

AP Photo 10 months ago

Former US vice president and Nobel laureate, Al Gore, gives a presentation during a ministerial meeting of the Arctic Council, in Tromsoe, northern Norway, Wednesday April 29, 2009.

Getty Images 10 months ago

Ex vice-president of the US and Nobel laureate Al Gore holds a speech at the 'Melting Ice' conference in Tromsoe, northern Norway on April 28, 2009. Gore, foreign ministers, and climate change scientists met on the occasion of the 'Melting Ice' conference to discuss melting ice in...

Former U.S. Vice president Al Gore (R) poses for a photo with Norway's Foreign Minister Jonas Gahr Stoere on the sidelines of the "Melting Ice" conference in Tromsoe, northern Norway April 28, 2009.

AP Photo 10 months ago

Former US vice-president and Nobel laureate Al Gore, right, meets with Norwegian Foreign Minister Jonas Gahr Stoere in Tromsoe, northern Norway Tuesday April 28, 2009. They met at the "Melting Ice"-conference in Tromsoe.

AP Photo 11 months ago

FILE -- In this Jan. 30, 2009 file photo, former Vice-President Al Gore speaks during a session at the World Economic Forum in Davos, Switzerland.

Getty Images 11 months ago

Former US Vice President Al Gore testifies before the Senate Foreign Relations Committee hearing on "Addressing Global Climate Change: The Road to Copenhagen" on January 28, 2009 on Capitol Hill in Washington, DC. Current Media, a cable television company co-founded by former US vice...

AP Photo 11 months ago

Former Vice President Al Gore acknowledges audience members after speaking at the International CTIA Wireless show in Las Vegas, Friday, April 3, 2009. Gore says government investment in green infrastructure projects, including creation of a "smart," energy efficient electricity grid,...

AP Photo 12 months ago

In this Feb. 12, 2009 file photo, former Vice President Al Gore poses backstage at the 40th NAACP Image Awards in Los Angeles.