Energy
Separating the peer-reviewed science of microwave pyrolysis from the unverified 110-octane, carbon-negative claims behind Plastoline fuel.
Rare Earth
Mountain Pass and MP Materials are rebuilding a U.S. rare-earth-to-magnet chain, but China, costs, and heavy rare earths remain the test.
Energy
The chemistry has worked since the 1920s. The energy efficiency is 9 to 16%. The cost is 5 to 8x fossil. Airlines, defense, and Porsche are buying it.
Recycling
Local production, adaptive reuse, and shared infrastructure are reshaping communities after industrial decline.
Batteries
Li-Cycle burned through $1 billion and went bankrupt. Glencore bought the wreckage for $40 million. The urban mining goldmine isn't what it seems.