People aren’t the only ones harmed by heat waves. The hotter it gets, the harder it is for machines to keep their cool.

Generative AI, those astonishingly powerful language- and image-generating tools taking the world by storm, come at a price: a big carbon footprint. But not all AIs are equally dirty.

Vast amounts of digital data is stored on computer servers and never used.

Training neural networks burns through a lot of energy. As the AI field grows, it's working to keep its carbon foot print from growing with it.