Richard Heinberg is a senior fellow at the Post Carbon Institute and the author of <em>Power: Limits and Prospects for Human Survival</em>. He is the co-author, with David Fridley, of<em> Our Renewable Future</em>, and is a contributor to the Observatory.
2023 was the hottest on record by a wide margin. The planet is now 1.48 degrees Celsius warmer than it was before the fossil fuel revolution. Global heating is accelerating.