An anonymous reader quotes a report from MIT News: Currently, lithium hard rock extraction involves baking the rock at over 1,000 Celsius and chemically leaching it to extract lithium. The rest of the rock is discarded. Now, a team of researchers from MIT and elsewhere has developed a low-temperature process for extracting battery-grade lithium from the most common type of lithium-bearing mineral. The process uses a liquid reagent to dissolve the rock into the useful forms of its constituent parts: not just battery-ready lithium salts, but also smelter-grade alumina and cement-ready silica. After the minerals are extracted, the solvent and reagent can be recovered and used again so waste levels approach zero. The researchers estimate the closed-loop process is half the cost of traditional lithium hard rock extraction and could make it cost-competitive with extracting lithium from brine water. "We believe this approach is the lowest-energy, lowest-cost way of getting lithium not only out of hard rock, but period," says Yet-Ming Chiang, MIT's Kyocera Professor of Materials Science and Engineering. "That's what's motivating us to scale this. It will enable the energy transition through batteries that use lithium. This was one of the goals of The Climate Project at MIT -- to work on projects that, within a short number of years, could transition from the lab to commercialization and impact." A paper describing the process has been published in the journal Science.

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Last month saw a world first, reports Electrek. Wind and solar generated more power globally than gas: According to new analysis from independent energy think tank Ember, wind and solar produced 22% of the world's electricity in April 2026, compared to 20% from gas. Together, the two renewable sources generated a record 531 terawatt-hours (TWh) of electricity during the month, 54 TWh more than gas plants generated globally, at 477 TWh... Five years ago, in April 2021, gas generation was almost identical to today's level at 476 TWh. But back then, wind and solar combined generated just 245 TWh — less than half of what they produced this April... Wind and solar generation increased across nearly every major market reporting April data... April tends to be the strongest month for this kind of milestone because spring weather in the Northern Hemisphere usually brings a combination of strong wind generation, rising solar output, and lower electricity demand between heating and cooling seasons. Still, the broader trend is clear. Ember's recent Global Electricity Review found that wind and solar met all global electricity demand growth in 2025. "Governments around the world are also ramping up renewable energy targets to reduce dependence on volatile fossil fuel imports..."

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