They're a more efficient way of using fossil fuels, and they're getting a lot cheaper.
Almost immediately after we started drilling wells, we started fracturing the rocks underground to increase the flow of fossil fuels.
The best reportage and analysis about the possibilities and dangers of fracking
An animated look at why production has skyrocketed in recent years
An animated look at how far solar has come since it emerged in the 1950s
It's taken 60 years, but solar is tantalizingly close to beating fossil fuels on price.
An animated guide to how crude oil turns into useful fuel for cars, jets, and more
Understanding how we produce and use petroleum
There are no easy solutions to global warming, but progress is on the horizon.
A quick, animated look at at where emissions come from on our planet
We use less energy heating our homes, but more on the appliances inside them
A look at how consumer habits have changed over the years
An introduction to the American way of making and using power
The energy system is a huge $6 trillion enterprise, but the basics are simple and human.
An animated guide to the different energy sources that power our nation