Impacts of Climate Change
Doubling of current atmospheric carbon dioxide may increase mean global surface air temperatures by 2.5oC.
Impacts include melting of the polar ice caps, oceanic water expansion, and an increase in global mean sea levels.
Complete melting of the polar ice caps will raise global mean sea level by 81 m.
Number of motor vehicles in the world has increased steadily, to about 1 billion (1.015 billion in 2010).
Human society will need to reassess its relationship with the internal combustion engine.