Tuesday's report, too rapid for peer-review yet, found global warming boosted the likelihood of high fire weather conditions in this month's fires by 35 percent and its intensity by 6 percent.

The hot, dry and windy conditions that preceded the Southern California fires were about 35% more likely because of climate change, according to a new report.

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.