Our standard of living depends on transforming energy locked up in fossil fuels, atomic nuclei or provided free of charge by the sun and wind into a form that we can use. That transformation of energy is governed by fundamental physics and chemistry. We'll see that energy is used for three things, maintaining a comfortable environment in buildings, moving people and things around and making stuff. About a third of energy use goes for each of these activities and
the book is divided into sections reflecting this division. There's also the concern that CO2 emissions from burning fossil fuels will change climate irreversibly in harmful ways. Can renewables
such as solar and wind take over from fossil fuels? How much will their use reduce CO2 emissions?