Last month was the hottest June on record in North America, stoked by a deadly heatwave searing across parts of the region, the European Union's climate monitoring service reported Wednesday, saying it illustrates the impacts of global warming.
Record-breaking heat scorched from the southwest to the northwest of the United States and into Canada, where the all-time record daily temperature was broken three days in a row in British Columbia.
The region was 1.2 degrees Celsius (34.2 degrees Fahrenheit) above the 1991-2020 average in June, according to the Copernicus Climate Change Service (C3S).
"These heatwaves are not happening in a vacuum. They are happening in a global climate environment that is warming and which makes them more likely to occur," said C3S climate scientist Julien Nicolas.
Globally, June 2021 joins the same month in 2018 as the fourth warmest June.
It was the second warmest June on record for Europe, while northern Siberia also saw extremely high summer temperatures.
It is already well understood that heatwaves are occurring more frequently, are more intense, and are lasting longer than they did in the past, Nicolas told AFP.
"The heatwaves that we saw last month in North America, western Russia and northern Siberia are just the latest examples of a trend that is projected to continue into the future and is tied to the warming of our global climate," he said.
Threats to life
The regions affected also had unusually dry soils, according to a report from C3S, which noted that both wildfires and heat "posed threats to life".
Dozens of fires have ripped across parts of Canada in recent days, fuelled by the deadly heatwave and tinder-dry conditions.
"What happened in Canada was a big jump with respect to the previous record," said Carlo Buontempo, the director of C3S.
"These hot records are a powerful reminder of the impact climate change could have on our lives," he told AFP.
The 2015 Paris Agreement calls for capping the increase in global temperatures at "well below" two degrees Celsius, and 1.5 degrees if possible.
Human activity has driven global temperatures up some 1.1 degrees Celsius so far, stoking increasingly fierce storms, extreme heatwaves, droughts and wildfires.
In May, the World Meterological Organization and Britain's Met Office said there was a 40 percent chance of the annual average global temperature temporarily surpassing 1.5 degrees above pre-industrial temperatures within the next five years.
The past six years, including 2020, have been the six warmest on record.
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