Last Update 23:0
Tuesday, 22 October 2019

Heatwave death threat soars for elderly, city dwellers

AFP , Thursday 29 Nov 2018
Views: 4977
Views: 4977

More than 150 million vulnerable people worldwide were exposed to potentially life-threatening heatwaves last year, scientists said Thursday, warning that climate change posed an unprecedented global health risk.

In a worldwide stocktake of public health trends, dozens of international agencies said people over 65, those living in large cities, and sufferers of heart and lung disease were all at heightened risk of death or disability from extreme heat.

The warning came as the United Nations' meteorological body said that the last four years including 2018 were the four warmest on record.

Globally, a total of 153 billion work hours were lost due to heat exposure in 2017, including seven percent of all labour time in India, the authors said, adding that the cost of keeping people safe from heatwaves was likely to balloon as our planet warms.

The outlook is particularly dire for Europe and the eastern Mediterranean, where mounting temperatures and an ageing population produced a "perfect storm" of risk factors, according to the study's lead author.

"For a very, very long time we have thought about climate change as something that effects the environment some time in 2100," Nick Watts, executive director of The Lancet Countdown on Health and Climate Change, told AFP.

"When you look at climate change as a public health issue, it really turns it on its head. It isn't just affecting polar bears or rainforests, it's something that affects communities, children, families in the UK and Europe and around the world."

Agriculture struggling 

The study team comprised experts from 27 institutions worldwide who mapped a variety of climate and health trends.

Watts and his team found that while global temperatures have risen 0.3C since the mid-1980s, for those most at risk of heat exposure the average temperature rise experienced was more than double -- 0.8C.

This was attributed to a mixture of factors, including migration to cities -- vulnerable to heatwaves through the "urban heat island effect", as well as more extreme localised heat as climate change wreaks havoc with our weather systems.

"If you just look at heat, you can see what heatwaves are doing," said Watts.

"If you do what we are publishing, you end up seeing that populations are ageing, they are migrating and they are growing into the areas worst affected by climate change."

Around 80 percent of all work hours lost to extreme heat were in agriculture, with India the worst hit in terms of total hours lost.

Scientists in July said climate change was making heatwaves roughly twice as likely to occur by 2040.

Using their varied health and climate metrics, the Lancet study authors said they had detected 18 million more at-risk people exposed to dangerous levels of heat than just two years ago.


Days before officials gather in Poland for talks aimed at finalising the Paris agreement climate goals, the authors said governments were failing their populations by underfunding core health infrastructure to protect against extreme weather.

They said healthcare spending to adapt to climate change increased by 3.1 percent to £11.68 billion ($14.9 bn, 13.2 billion euros) globally, which falls well short of the commitments made in the 2015 Paris accord.

"When you read through many governments' heat plans they are planning for heat as it has been historically," said Watts.

"Unless governments are preparing plans that take into account the fact that we are going to see a heck of a lot more of this, those plans are going to get overwhelmed."

Short link:


Ahram Online welcomes readers' comments on all issues covered by the site, along with any criticisms and/or corrections. Readers are asked to limit their feedback to a maximum of 1000 characters (roughly 200 words). All comments/criticisms will, however, be subject to the following code
  • We will not publish comments which contain rude or abusive language, libelous statements, slander and personal attacks against any person/s.
  • We will not publish comments which contain racist remarks or any kind of racial or religious incitement against any group of people, in Egypt or outside it.
  • We welcome criticism of our reports and articles but we will not publish personal attacks, slander or fabrications directed against our reporters and contributing writers.
  • We reserve the right to correct, when at all possible, obvious errors in spelling and grammar. However, due to time and staffing constraints such corrections will not be made across the board or on a regular basis.

© 2010 Ahram Online.