Nuclear projects are getting a boost of investment as countries try to tackle an energy crisis sparked by the Ukraine war, while also pursuing emissions targets. WSJ looks at how start-ups say their alternative designs can help solve past issues.
Revamped German stellarator should run longer, hotter and compete with tokamaks
CHIPS act will fund microelectronics innovation and training through large partnerships
Scientists call for concerted effort to forecast points of no return for ice, weather patterns, and ecosystems
Move to phase out gas-powered cars will force progress toward faster charging batteries
Loved and hated, NIAID’s chief plots life after government
COVER: Humanity’s actions have committed us to a warming climate and limited our options for mitigation. Although there is no turning back, some paths are still open to avoid catastrophic climate change and reduce its impacts. We must act now to drastically reduce greenhouse gas emissions and change our approaches to growing food, consuming products, and managing ecosystems to avoid a dire future. See page 1392.
Illustration: Myriam Wares
Our climate future
JAMES MORTON TURNER
On Sept. 5, 2021, for the first time, a large high-temperature superconducting electromagnet was ramped up to a field strength of 20 tesla, the most powerful magnetic field of its kind ever created on Earth. That successful demonstration helps resolve the greatest uncertainty in the quest to build the world’s first fusion power plant that can produce more power than it consumes, according to the project’s leaders at MIT and startup company Commonwealth Fusion Systems.