How to Avoid a Climate Disaster

Tip: Whenever you hear “kilowatt,” think “house.” “Gigawatt,” think “city.” A hundred or more gigawatts, think “big country.”

In the past, we’ve moved from one source to another because the new one was cheaper and more powerful. When we stopped burning so much wood and started using more coal, for example, it was because we could get a lot more heat and light from a pound of coal than from a pound of wood.

With the threat of climate change upon us, it can be hard to be hopeful about the future.