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Why the for-profit race into solar geoengineering is bad for science and public trust

Many people already distrust the idea of engineering the atmosphere—at whichever scale—to address climate change, fearing negative side effects, inequitable impacts on different parts of the world, or the prospect that a... Read more »

The Download: the AGI myth, and US/China AI competition

—Will Douglas Heaven, senior AI editor  Are you feeling it? I hear it’s close: two years, five years—maybe next year! And I hear it’s going to solve our biggest problems in ways... Read more »

The State of AI: Is China about to win the race? 

Yet those same constraints have pushed Chinese companies toward a different playbook: pooling compute, optimizing efficiency, and releasing open-weight models. DeepSeek-V3’s training run, for example, used just 2.6 million GPU-hours—far below the... Read more »

The Download: gene-edited babies, and cleaning up copper

The news: A West Coast biotech entrepreneur says he’s secured $30 million to form a public-benefit company to study how to safely create genetically edited babies, marking the largest known investment into... Read more »

This startup wants to clean up the copper industry

This is far from the first attempt to use a water-based, chemical approach to processing copper. Today, some copper ore is processed with acid, for example, and Ceibo, a startup based in... Read more »