A New Zealand scientist has denied popular claims the recent Australian heatwave and other extreme weather events around the world are linked to global warming.
Australia has experienced record hot weather in the last week, with temperatures reaching 48degC and bush fires burning throughout the south-east of the country.
New Zealand has also had an extreme summer of weather, with record-breaking high temperatures in some areas, and tornados and flooding in others.
These extreme weather patterns have again sparked debate over global warming, with Australian Prime Minister Julia Gillard suggesting a link between the country’s recent heatwave and climate change.
"Whilst you would not put any one event down to climate change,” Ms Gillard told media last week, “we do know over time that as a result of climate change we are going to see more extreme weather events and conditions."
The Australian government’s Climate Commission released a report last week stating: “climate change has contributed to making the current extreme heat conditions and bushfires worse”.
But associate professor of climate and environment science Chris de Freitas, from the University of Auckland, says this is not the case.
“There is no evidence to suggest that,” he says. “It’s really [just] hype.”
Dr Freitas says Australia is a “land of extremes” with heatwaves like those seen this month not uncommon. He says they are not necessarily a sign of global warming.
“It’s speculation, not fact.”
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