Some climate change doubters have wondered just why Al Gore and his associates deserved the Nobel Prize. I'll attempt to give a brief justification.
Climate change has the very real probability of causing huge changes in such things as snow, rain, hurricanes, and sea level. This in turn can result in such things as now-fertile regions, like the American midwest becoming a desert. Likewise, sea level rise can flood many regions of the world now inhabited.
More...
Why Gore and his associates won was was for their efforts to document and educate the world about these and other climate change effects, and the human role in causing them. In doing so, there is at least a chance that nations of the world can now begin to try to stop or at least slow those changes. These changes could result in mass dislocations and refugee migrations, famines, plagues, and even war.
And let's not kid ourselves: The biggest reason the U.S.A. has been such a world power is because it has been lucky enough to have a huge amount of fertile soil and temperate weather. Climate change could convert much of the American breadbasket regions into barren wastelands.
If those changes cannot be stopped, advance knowledge could help prepare for a world in which much of the inhabited area of the world is underwater, and regions now unsuitable for crops can become the breadbasket of the 2000s and 2100 and beyond. New crops may be found which could grow in hotter and dryer regions. It may not stop the all the problems, but it could stop much of them.
This is why Al Gore & Associates won the Nobel Peace Prize.
jtg