Huffington Post: Could the heat coming from your refrigerator be contributing to global warming?
Anyone who has given a public lecture on climate change has almost certainly gotten this question:
Whenever you operate a motor or turn on a light, you generate heat. How do you know that that heat is not a significant source of global warming?
It's a good question. To answer it, let's start with a review of one of my favorite topics.
All the energy we use to power our cars, light our homes, or power our iPads...