The Download: AI to detect child abuse images, and what to expect from our 2025 Climate Tech Companies to Watch list

US investigators are using AI to detect child abuse images created by AI, as the production of such images has increased. The Department of Homeland Security has awarded a contract to San Francisco-based Hive AI for software that can differentiate AI-generated content from real victim material. MIT Technology Review is preparing to release its 2025 list of Climate Tech Companies to Watch on October 6, focusing on companies addressing climate change. The list aims to highlight companies making a meaningful impact in cutting emissions and adapting to a warming world.