Extreme conditions helped drive the fast-moving fires that destroyed thousands of homes in the Pacific Palisades and Altadena.

As Los Angeles reels from the loss of lives and homes to the Easton and Palisades fires, scientists are asking why the events of this January have been so catastrophic.

Climate change was a major factor behind the hot, dry weather that gave rise to the devastating LA fires, a scientific study has confirmed. It made those weather conditions about 35% more likely, according to World Weather Attribution - globally recognised for their studies linking extreme weather to climate change.