Climate crisis

The climate crisis demands action — and action is happening. This archive tracks real progress: policy wins, clean-energy milestones, community resilience, and scientific advances that show meaningful change is possible. Stories here come from every corner of the world.

Lake in Switzerland, for article on pumped-storage power plant

Switzerland builds the world’s largest water battery to store surplus renewable energy

Nant de Drance represents something genuinely exciting: proof that we can store renewable energy at a scale that changes how entire continents manage their grids. Tucked 2,000 feet inside the Swiss Alps, the plant holds 20 million kWh by moving water between two mountain reservoirs — absorbing surplus solar and wind, then releasing it as hydropower within minutes when demand spikes. It can supply roughly 900,000 homes and acts as a rapid-response buffer for Switzerland and neighboring European countries. Projects like this show that the hardest engineering problems in the clean energy transition are solvable.

Sand, for article on sand battery storage

World’s first commercial sand battery begins energy storage in Finland

Sand-based thermal energy storage is stepping out of the lab and into real communities, and the implications reach well beyond Finland. A steel tank packed with ordinary sand captures surplus wind and solar energy as heat, then pipes warmth through a district heating network serving homes and public buildings — at under €10 per kilowatt-hour, using no rare materials. With nearly half of Scandinavian homes already connected to district heating, this technology has a ready path to scale. For communities facing long, cold winters, affordable heat storage like this could become a quiet cornerstone of the clean energy transition.

Airplane taking off against sunset, for article on Schiphol flight cap

In world first, The Netherlands caps flights at major airport to cut pollution

Flight caps at major airports are now a reality, and the Netherlands just proved a democratic government can make it happen. By hard-capping annual flights at Schiphol — Europe’s third-busiest airport — Dutch leaders treated aviation the same way they’d treat any polluting industry: subject to real environmental limits, not just cleaner-technology promises. Climate researchers say that curbing flight numbers, alongside greener fuels, is genuinely necessary to meet Paris Agreement goals. Greenpeace called the decision a historic breakthrough, and it’s easy to see why — other governments now have a working model to follow.