Electric power is one of several cleaner alternatives to traditional aviation fuel.
US states are suing the social media giant to force an overhaul of its platforms for young users.
A new UK trial hopes to reduce the condensation trails from planes, which can trap heat in the Earth’s atmosphere.
OpenAI insisted this was not in response to a particular issue with children believing ChatGPT to be alive.
Meta argued social media addiction does not exist, as a trial stemming from a major lawsuit brought by US states started.
The war in Ukraine has spurred people to consider putting vital infrastructure underground.
The ChatGPT-maker said training will be slowed for two weeks while it puts the upgrades in place.