A prominent environmental activist, Gore was awarded the 2007 Nobel Peace Prize (together with the Intergovernmental Panel on Climate Change) for the "efforts to build up and disseminate greater knowledge about man-made climate change, and to lay the foundations for the measures that are needed to counteract such change." He also starred in the Academy Award-winning documentary on the topic of global warming, An Inconvenient Truth. In 2007, Gore helped to organize the July 7 benefit concert for global warming, Live Earth.
Gore is currently chairman of the Emmy Award - winning American television channel Current TV, chairman of Generation Investment Management, a director on the board of Apple Inc., an unofficial advisor to Google's senior management, chairman of the Alliance for Climate Protection, and a partner in the venture capital firm, Kleiner Perkins Caufield & Byers, heading that firm's climate change solutions group.
Gore was one of the first politicians to grasp the seriousness of climate change and to call for a reduction in emissions of carbon dioxide and other greenhouses gases. He held the first congressional hearings on the subject in the late 1970s.
In February 2007, critics stated that "a report by the Nashville Electric Service revealed that Mr Gore's mansion in Nashville consumed between 12 and 20 times more electricity than the average family home and that his electricity consumption had risen since the film's release in 2005. WKRN-TV reported that the Gore family obtains their power from the Nashville Electric Service's "renewable energy initiative", The Green Power Switch program. The Detroit Free Press also noted that "Gore purchased 108 blocks of 'green power' for each of the past three months, according to a summary of the bills. That’s a total of $432 a month Gore paid extra for solar or other renewable energy sources.The green power Gore purchased is equivalent to recycling 2.48 million aluminum cans or 286,092 pounds of newspaper, according to comparison figures on NES’s Web site. The Associated Press reported on 13 December 2007 that Gore "has completed a host of improvements to make the home more energy efficient, and a building-industry group has praised the house as one of the nation's most environmentally friendly [...] 'Short of tearing it down and staring anew, I don't know how it could have been rated any higher,' said Kim Shinn of the U.S. Green Building Council, which gave the house its second-highest rating for sustainable design."
Gore has also been criticized by those who argue that he maintains carbon neutrality by purchasing carbon credits from Generation Investment Management, a company for which he serves as Chairman. In response, a spokesman for Generation stated that "Gore is not profiting from his crusade against global warming" and that Gore does not purchase carbon credits from Generation. Instead, Generation purchases carbon credits from third party providers such as the Carbon Neutral Company to offset the personal emissions of all employees and their families, including Gore's. He also argued that Generation does not sell carbon credits, nor does it develop them--rather, they voluntarily purchase credits from others on behalf of employees. Other critics accuse him of attempting to make a huge profit from his global warming activism. However, Gore denies money motivates him to fight global warming