Al Gore was almost elected President of the United States. In one of the closest elections in U.S. history, he lost at the last minute to George W. Bush. Then he had a choice to make. Would he prepare for a future campaign? Would he retire and take it easy? Or would he go in a new direction?
For the next stage of his life, Al Gore chose to become an environmental activist. He revived his slide show about global warming and made it his mission to educate the public on the topic and to convince people to make changes.
With his slide show, "An Inconvenient Truth," he used graphs and pictures to vividly show the effects of global warming. According to Al Gore, global warming is caused by humans. He said, "Scientific consensus is that we are causing global warming."
At that time, some people still disagreed with his statement.
Then in 2007, the Nobel Prize committee chose to honor Al Gore for his work on climate change by awarding him the Nobel Peace Prize. He would share the prize with the United Nation's Intergovernmental Panel on Climate Change, or the IPCC. The IPCC is made up of hundreds of distinguished scientists from around the world. Their goal is to provide the best possible information on climate change to government officials.