Moving from principles to action for energy supply that mitigates against climate change requires a long-term perspective. Energy infrastructure takes time to build up; new energy technologies take time to develop. Policy shifts often also need many years to take effect. In most world regions the transformation from fossil to renewable energies will require additional investment and higher supply costs over about twenty years
The outcome of the Energy [R]evolution Scenario for each region
of the world shows how the global pattern is adapted to regional circumstances in terms of predicted demand and the potential
for developing different sources of future energy generation.