Energy
Transitioning to a world powered by renewable energy is key to tackling climate change. Here you can find the latest good news related to our clean energy transition, covering wind, solar, green hydrogen, hydropower, and more.
Wet coffee waste becomes coal-grade fuel in under two minutes
BY THE OPTIMIST DAILY EDITORIAL TEAM Researchers at the Korea Institute of Geoscience and Mineral Resources developed a plasma-based process that converts wet coffee grounds into coal-grade biochar in under 90 seconds, with no pre-drying required. The system, described in Chemical Engineering Read More...
Solar fridges lift African farmers’ incomes by 50 percent
BY THE OPTIMIST DAILY EDITORIAL TEAM Up to 40 percent of food produced in Africa is lost between harvest and market. Not from drought or pest damage, but from the absence of one thing: refrigeration. The early numbers from solar-powered cold storage are hard to argue with. Provider Soko Fresh Read More...
California’s first eight-hour grid battery just came online
BY THE OPTIMIST DAILY EDITORIAL TEAM The California grid has a timing problem. Solar runs from mid-morning through early evening. Demand peaks later. Batteries have bridged part of that gap for years, but only about four hours’ worth. On June 1, a project in Kern County doubled that Read More...
11,000 jobs, $1.4 billion in savings: what a decade of green banking built in Philadelphia
BY THE OPTIMIST DAILY EDITORIAL TEAM An impressive $14.7 million from the city. $1.3 billion in economic investment returned. $1.4 billion in energy savings. 11,000 jobs created. Those are the results of the Philadelphia Energy Campaign’s first decade, according to a 10-year economic impact Read More...
Monterey Park becomes first US city to permanently ban data centers
BY THE OPTIMIST DAILY EDITORIAL TEAM Monterey Park voted 86 percent to 14 percent last Tuesday to permanently ban data centers from the city. It is the first US city to do it through a ballot initiative. Campaign organizer Steven Kung called it “a landslide victory.” On the reasons: Read More...
How Paraguay cut its poverty rate from over 50 to 16 percent in two decades
BY THE OPTIMIST DAILY EDITORIAL TEAM In 2005, more than half of Paraguay’s population lived in poverty. By 2025, that share had fallen to 16 percent. A third of the country’s population crossed that threshold over two decades; around 300,000 more did so in just the last two years. A World Read More...
China’s renewable hydrogen capacity crosses one million tonnes
BY THE OPTIMIST DAILY EDITORIAL TEAM The numbers from China’s National Energy Administration tell a story that is clearest in two parts. First: over 250,000 metric tonnes per year (approximately 275,000 US short tons) of green hydrogen capacity is now operational in China, more than double Read More...
2025: The year renewables finally outpaced global electricity demand growth
BY THE OPTIMIST DAILY EDITORIAL TEAM Something shifted in the world’s energy system in 2025, and the numbers are hard to argue with. For the first time in modern history, clean energy generation grew faster than global electricity demand, meaning every new watt of power the world needed Read More...
Germany’s coal mines are now Europe’s largest lake district
BY THE OPTIMIST DAILY EDITORIAL TEAM When the last miners left the open-cast lignite pits of eastern Germany’s Lusatia region, they left behind craters stretching more than 200 feet (60 meters) deep. What followed was not restoration in any conventional sense. It was construction: the Read More...
Earth Day at 56: why the 2026 theme carries more weight than usual
BY THE OPTIMIST DAILY EDITORIAL TEAM On April 22, 1970, roughly 20 million Americans took to the streets, campuses, and parks to demand that the government treat the environment as something worth protecting. At the time, rivers in the United States were catching fire. Lead was still in Read More...