Study links heatwave deaths in London and Paris to climate change
In 2003, more than 70,000 people across Europe died in a sweltering heatwave that spanned much of the summer.
France was among the worst-affected countries, with 15,000 deaths in August alone. In the UK, the summer saw more than 2,000 heat-related fatalities.
A new first-of-a-kind study works out how many of the deaths in Paris and London are down to the heatwave being intensified by human-caused climate change.
The findings suggest that 506 of the 735 summer fatalities in Paris in 2003, and 64 of the 315 in London, were a result of human influence on the climate.
Human influence
The European summer heatwave of 2003 has been something of a focal point for scientists looking at if and how human-caused climate change influences extreme weather events.
In 2004, the heatwave was the subject of the first ever attribution study, which found that climate warming from human activity had at least doubled the likelihood of such an event. In 2014, another study found that a similar “extremely hot” summer in Europe has become 10 times more likely over the last 10-15 years because of climate change.
Taking this a step further, the new study, published in Environmental Research Letters, attributes the number of deaths during the 2003 heatwave to our warming climate.
The study makes use of the weather@home project, where members of the public offer spare capacity on their home computers for scientists to run model simulations.
The researchers ran thousands of simulations of European weather in 2003. One set of model runs simulated the weather according to the climate as it was – i.e. in a world warmed by past greenhouse gas emissions. The second set simulated the weather in a hypothetical world with no human influences on climate.
https://www.carbonbrief.org/study-links-heatwave-deaths-london-paris-climate-change
In 2003, more than 70,000 people across Europe died in a sweltering heatwave that spanned much of the summer.
France was among the worst-affected countries, with 15,000 deaths in August alone. In the UK, the summer saw more than 2,000 heat-related fatalities.
A new first-of-a-kind study works out how many of the deaths in Paris and London are down to the heatwave being intensified by human-caused climate change.
The findings suggest that 506 of the 735 summer fatalities in Paris in 2003, and 64 of the 315 in London, were a result of human influence on the climate.
Human influence
The European summer heatwave of 2003 has been something of a focal point for scientists looking at if and how human-caused climate change influences extreme weather events.
In 2004, the heatwave was the subject of the first ever attribution study, which found that climate warming from human activity had at least doubled the likelihood of such an event. In 2014, another study found that a similar “extremely hot” summer in Europe has become 10 times more likely over the last 10-15 years because of climate change.
Taking this a step further, the new study, published in Environmental Research Letters, attributes the number of deaths during the 2003 heatwave to our warming climate.
The study makes use of the weather@home project, where members of the public offer spare capacity on their home computers for scientists to run model simulations.
The researchers ran thousands of simulations of European weather in 2003. One set of model runs simulated the weather according to the climate as it was – i.e. in a world warmed by past greenhouse gas emissions. The second set simulated the weather in a hypothetical world with no human influences on climate.
https://www.carbonbrief.org/study-links-heatwave-deaths-london-paris-climate-change