Three years after launching his “special military operation” in Ukraine, Russian President Vladimir Putin faces a looming choice. In public, he exudes optimism. He has pulled his country back from the ...

The Bulletin of the Atomic Scientists set the clock to 89 seconds before midnight—one second closer to the theoretical point ...

Protecting and conserving our natural heritage, predicting weather and environmental conditions, preventing and managing pollution, promoting clean growth and a sustainable environment for present and ...