The climate challenge is, at its core, an energy challenge. Fossil fuels are the lifeblood of the modern world, and virtually everything we do, make, buy, drive, wear, and consume is touched by or dependent on the infrastructure use to harvest, distribute and burn coal, natural gas, or oil. Creating a new infrastructure to undergird the 21st century and beyond is a gargantuan undertaking, the scale of which is easy to underestimate.
