Google has achieved a remarkable 33-fold reduction in AI query energy consumption in just one year. The company’s Gemini system now processes text queries using only 0.24 watt-hours, a development poised to foster more sustainable AI technologies amid mounting data center demands.

Three teenagers have developed the Thermavault, a salt-powered refrigerator that operates without electricity. They’re set to build 200 units for hospitals, aiming to keep vaccines cool with a reusable salt solution.