Molten salt could be the key to unlocking a future full of renewable energy. During peak times the salt stores solar power that can be saved and used later.
Over 300 U.S. businesses, many from the Fortune 500, signed a statement renewing private-sector support for the Paris agreement on climate change.
"What we do right now, today, matters," Kerry told delegates at a climate change summit developing rules to implement the Paris climate agreement.
Scientists are trying to learn more about Azolla, a plant that might help reduce man-made climate change — but there are some challenges.
Nearly 200 countries took a key step in the fight against global warming by phasing out a chemical used in air conditioners and refrigerators.
This year, Apple applied to sell excess electricity from new renewable energy installations. Google, Amazon and Walmart started similar programs.
What does grid parity have to do with climate change? Everything. As the cost of renewable energy drops, so does the dependence on traditional energy.
Despite the Paris agreement to cut emissions causing the planet to warm, "we haven't won the battle yet," Kerry told young climate scientists in Antarctica.
With bicycle boulevards, 'sharrows' and more than 500 kilometers of bikeways, Portland, Oregon, has become one of the greenest cities in the U.S.