Alternative energy

We self-flagellate sometimes about our carbon footprint, but we don't even realize what that means.

— Alternative energy

Right now alternative energy is still treated as a supplement rather than a substitute for fossil fuels within the as presently constituted. The rapid growth of alternative energy should not therefore be seen as a radical break with the domination of fossil fuels. That still needs to occur.

— Alternative energy

Even if we wanted to run the grid on renewables right now we couldn’t, because you’d need fossil-fueled turbines to make up for the fact that the renewable supply cannot be dispatched on demand.

— Alternative energy

With an efficiency of 97 percent, bicycle technology is nearly perfect. So why do we use it only for transportation?

— Alternative energy