Debates on climate intensified

Australian PM among harshest critics of those linking blazes with global warming

What part has climate change played in the deadly wildfires that have ravaged California and the Amazon, and the bushfires now burning along Australia's eastern coast? It is a question taking on greater significance as the intensity and frequency of fires increase.

Grant Wardell-Johnson, an adjunct associate professor with the School of Molecular and Life Sciences at Curtin University in Western Australia, said the link between climate change and fires' impact is "complex but unequivocal".