Science of climate change made simple

My greenhouse is covered with a thin plastic film. A few molecules of plastic are all it takes to make it 30 Fahrenheit degrees warmer inside than out. When coal, gasoline, and natural gas are burned, they produce carbon dioxide which traps heat just like the plastic film of my greenhouse.

Green plants recycle carbon dioxide, but they can’t keep up with the amount that we put out. Two hundred years ago, atmospheric CO2 levels were 280 parts-per-million; now they’re over 395 ppm. Every year globally, we burn 9 billion tons of fossil fuels. None of this is disputed.