Silicon Valley investors are pouring money into a nuclear comeback to feed surging AI and data‑center demand — U.S. data centers now use 183 TWh a year, and backers see nuclear as a cleaner, steady supply (Newsweek). [P]At the same time a new study warns no climate scenario lets the U.S. supply enough water for its 22 proposed lithium mines, undercutting battery-scale buildouts (Review‑Journal). There’s a tech fix to one supply problem — researchers unveiled an innovative thermal method to extract nickel from ultramafic rocks that could make battery metal mining more efficient and less damaging (Scienmag), but the trio of power, water and critical metals shows decarbonization is as much a supply‑chain puzzle as a generation problem.