Renewable energy is the foundation of the ongoing energy transition. What are the key types of renewable energy, and how do they work?
Biofuel mandates were passed in 2005, this graphic shows why they've become out of touch with modern transportation and are costing billions.
The amount of human-made (or anthropogenic) mass, has now exceeded the weight of all life on Earth, including humans, animals, and plants.
Which U.S. companies use the most green energy as a percentage of total energy used? Here are the 50 highest ranked companies according to the EPA.