A23a: Monster iceberg just shy of a trillion tonnes
Scientists use a radar satellite to take a "tape measure" to the world's biggest block of ice.
Author Archives: BBC News - Science & Environment
COP28: Three takeaways from the deal on fossil fuels
Climate reporter Esme Stallard breaks down the COP28 climate summit agreement - in less than a minute.
COP28: Landmark summit takes direct aim at fossil fuels
The deal agrees to 'transition away' from fossil fuels for the first time but falls short of phasing them out.