The study estimates that heatwaves caused by climate change have cost the global economy $16 trillion.

Heat waves caused by human activity changing of the climate have cost the global economy $16 trillion (£14 trillion) since the 1990s, the study calculated.

This is due to the impact of high temperatures on human health, productivity and agricultural products.

It also showed that the poorest countries in the world with the lowest carbon emissions suffered the biggest economic blows, for example in the tropics.

Dartmouth College researchers New HampshireThe US combined economic data with the average temperature of the hottest five-day period for each global region.

They found that from 1992 to 2013, heatwaves generally coincided with fluctuations in economic growth, which differ between high- and low-income regions.

“Almost no country on Earth has benefited from a heat wave,” said senior author Justin Mankin, assistant professor of geography.

This graph shows the relationship between each country's average income and the effect that anthropogenic heatwaves have had on their economy.  Since the 1990s, low-income countries have emitted less CO2 and suffered more losses from anthropogenic heatwaves.

This graph shows the relationship between each country’s average income and the effect that anthropogenic heatwaves have had on their economy. Since the 1990s, low-income countries have emitted less CO2 and suffered more losses from anthropogenic heatwaves.

From 1992 to 2013, heatwaves generally coincided with fluctuations in economic growth that differed between high- and low-income regions.  Pictured: Lake Mead, Nevada, USA, during the July drought.

From 1992 to 2013, heatwaves generally coincided with fluctuations in economic growth that differed between high- and low-income regions. Pictured: Lake Mead, Nevada, USA, during the July drought.

By 2035, the heat wave in the UK in 2022 will be the “average summer”, the study says.

According to a study by the Met Office’s Hadley Centre, temperatures seen this summer in the UK will be ‘summer average’ by 2035.

And this is even if countries fulfill the climate commitments agreed under the 2015 Paris Agreement.

The study examined how quickly temperatures were changing across Europe and tracked observed average summer temperatures since 1850 against model predictions.

It has also been found that the average summer in Central Europe by 2100 will be more than 4°C hotter than in the pre-industrial era.

He added: “Global events such as the COVID-19 pandemic have highlighted the close relationship between the supply chain and the global economy.

“In low-income countries, there are disproportionately many outdoor workers who often produce raw materials so important to the global supply chain – there is absolutely potential for an upward ripple effect.”

The authors claim that their work is one of the first to specifically investigate how heat waves affect production volumes.

“The true costs of climate change are much higher than we have thought so far,” Dr. Mankin said.

Previous studies have tended to focus on higher-income regions where both economic and climate data are more reliable.

They also classified heatwaves among other climate change-related extremes, such as more frequent flooding and increased storms.

However, heatwaves are unique in that they are more related to the temperature of the hottest days of the year than to the global average temperature.

The former are predicted to grow much faster than the latter as human activity continues to cause climate change.

Simulation analysis published today in Scientific achievementsused both the mean annual temperature and data for the five hottest days of the year.

This made it possible to take into account the interaction of these two factors when assessing the impact of extreme heat waves on production volumes.

First author and graduate student Christopher Callahan said: “Heat waves are one of the most direct and tangible impacts of climate change that people are experiencing, yet they have not been fully factored into our estimates of what climate change has cost and will cost in the future. ‘

The study also found that the world's poorest, least carbon-emitting countries suffered the biggest economic blows, such as those in the tropics.  Pictured, a boatman drinks water from a bottle on a hot day in Dhaka, Bangladesh, this April.

The study also found that the world’s poorest, least carbon-emitting countries suffered the biggest economic blows, such as those in the tropics. Pictured, a boatman drinks water from a bottle on a hot day in Dhaka, Bangladesh, this April.

Impact of heat extremes on economic growth (pps per standard deviation) for each region based on their mean temperatures

Impact of heat extremes on economic growth (pps per standard deviation) for each region based on their mean temperatures

The study found that extreme heat caused cumulative economic losses ranging from $5 trillion (4.3 trillion pounds) to $29.3 trillion (25.3 trillion pounds) worldwide from 1992 to 2013.

Economic losses due to extreme heat also turned out to be lower in wealthier countries.

Over the 21-year study period, regions in the top income decile lost an average of 1.5 percent of gross domestic product (GDP) per capita due to heat waves.

This includes locations in the US, Canada, and parts of Europe.

For low-income regions, such as parts of Brazil and Mali, this figure was 6.7 percent of GDP per capita.

“Our work shows that no place is adapted to our current climate,” Dr. Mankin said.

In addition, the researchers found that wealthy subnational regions in Europe and North America could benefit economically from periods of warmer days.

For example, these cooler countries may experience a boom in tourism or even agricultural benefits.

They also have more resources to withstand heat waves, but are also one of the world’s largest carbon emitters.

Dr. Mankin said: “This is a massive international transfer of wealth from the world’s poorest countries to the world’s richest countries as a result of climate change, and this transfer must be reversed.”

The researchers found that wealthy subnational regions in Europe and North America could benefit economically from periods of warmer days.  For example, these cooler countries may experience a boom in tourism or even agricultural benefits.  Pictured, people cool off near the Eiffel Tower during a heatwave in France in August 2022.

The researchers found that wealthy subnational regions in Europe and North America could benefit economically from periods of warmer days. For example, these cooler countries may experience a boom in tourism or even agricultural benefits. Pictured, people cool off near the Eiffel Tower during a heatwave in France in August 2022.

The economic impacts of climate change and the costs of adaptation are borne by the world's poorest countries in the tropics and global South.  Pictured: Forest fire in Mato Grosso, Brazil, 2019.

The economic impacts of climate change and the costs of adaptation are borne by the world’s poorest countries in the tropics and global South. Pictured: Forest fire in Mato Grosso, Brazil, 2019.

The authors say their study highlights that the economic impacts of climate change and the cost of adaptation are borne by the world’s poorest countries in the tropics and global south.

Most of these countries have also contributed the least to climate change through greenhouse gas emissions.

“As climate change increases the incidence of extreme heat, it’s fair to expect these costs to continue to pile up,” Dr. Mankin said.

According to the researchers, there is an urgent need for policies and technologies that protect people during the hottest days of the year, especially in low-income regions.

They say their results prove that the world’s major emitters should pay most of the bill for adapting to heat extremes.

“Targeting resources to heat hardiness and early warning capabilities for just a few days a year could bring disproportionate economic benefits,” they wrote.

This should be in addition to helping them develop low-emission economies, as this will benefit rich and developing countries alike.

Mr Callahan said: “Speeding up adaptation measures during the hottest periods of each year would bring economic benefits now.

“The amount of money spent on adaptation measures should be valued not only at the cost of these measures, but also relative to the cost of inaction.

“Our research reveals the significant cost of inaction.”

Droughts this summer in the Northern Hemisphere have become at least 20 TIMES more likely due to climate change, according to a study.

Changing of the climate a study found that droughts in the Northern Hemisphere this year are 20 times more likely.

Greenhouse gas emissions have been found to have played a key role in one of the hottest years ever recorded in Europe, when soils were completely dry.

Climate scientists from the World Weather Attribution team collected data on soil moisture levels in June, July and August 2022 over a large area of ​​our hemisphere.

They found a moisture deficit and determined its amount. by analyzing weather data and computer simulations to compare today’s climate with that of the 1800s.

Their findings showed that a drought could be expected in the Northern Hemisphere about once every 20 years in today’s climate, which has warmed by 1.2°C due to emissions.

In addition, if humans had not warmed the planet, droughts could be expected about once every 400 years or even earlier.

Read more here