COPENHAGEN – There is a dangerous misperception that willpower and political agreement are the only missing ingredients needed to combat global warming. In fact, there is also a colossal technological hurdle. Ending our reliance on fossil fuels requires a complete transformation of the world’s energy systems.
No alternative form of energy is efficient enough to compete with fossil fuels at scale. Other than nuclear power – which is still much more expensive than fossil fuels – all of the known possibilities require significant research and development.