With COP21 happening this week in Paris there are many approaches to fighting climate change being discussed. No matter what approach is used there will have to be structural changes in how energy is delivered and how goods are transported. Over at Gizmodo they took a look at how quickly we can transition to a low-carbon energy system and it turns out we can do it rather quickly. Infrastructure takes time to rebuild and adopt to new technologies and the sooner we start the better.
Many different policy approaches could help, both to reduce consumption and to increase the share of renewables in the energy mix.
Building codes could be gradually adjusted to require that every rooftop generate energy, and/or ratcheted up to LEED “green building” standards. A gradually increasing carbon tax or cap-and-trade system (already in place in some nations) would spur innovation while reducing fossil fuel consumption and promoting the use of renewables.
In the United States, at least, eliminating the many subsidies that currently flow to fossil fuels may prove politically easier than taxing carbon, yet send a similar price signal.