How Finland's giant sand battery is storing clean energy (and cutting emissions by 70 percent)
BY THE OPTIMIST DAILY EDITORIAL TEAM To wrap up our Best of 2025 series, we’re sharing something a little more personal… our Staff Picks! These are the articles that sparked extra chats, late-night musings, and genuine delight among our team. They made us think, smile, and (of course) feel a Read More...
How Finland's giant sand battery is storing clean energy (and cutting emissions by 70 percent)
BY THE OPTIMIST DAILY EDITORIAL TEAM In a small Finnish town with a big climate goal, an unassuming tower of sand is quietly storing solar and wind energy all while making a powerful statement about clean tech innovation. Pornainen, in southern Finland, is now home to the world’s largest Read More...
Texas blends clean energy and sustainable farming with the help of 6,000 sheep
BY THE OPTIMIST DAILY EDITORIAL TEAM As the United States accelerates its shift to renewable energy, Texas is pioneering an unusual approach that combines solar power generation and sustainable agriculture. This method, known as agrivoltaics, combines solar panels with agricultural practices to Read More...
Breakthrough in green hydrogen production: cobalt and water replace rare iridium
BY THE OPTIMIST DAILY EDITORIAL TEAM Hydrogen generation is frequently cited as a critical component in the shift to renewable energy. However, according to a paper published in Nature Energy by Kiane de Kleijne of Radboud University and Eindhoven University of Technology, the technique has Read More...