ReutersKATOWICE, Poland (Thomson Reuters Foundation) — Fighting climate change is one of the best ways to improve health around the world, and the benefits of fewer deaths and hospitalizations would far outweigh the costs of not acting, the World Health Organization said on Wednesday.
Keeping global warming “well below” 2 C, as governments have pledged to do under the 2015 Paris Agreement, could save about a million lives a year by 2050 through reducing air pollution alone, the U.N agency said.
Burning fossil fuels — which emit carbon dioxide, the main culprit for climate change — is a major driver of air pollution, the WHO said in a report issued at U.N. climate talks in Poland.
Maria Neira, WHO’s director for public health, said exposure to air pollution causes 7 million deaths worldwide every year.
“This is one of the most outrageous things happening today,” she said. “We want to tell countries: The more you delay this [clean energy] transition, the more you will be responsible for the ... millions of deaths that are recorded every year.”
Health gains resulting from action to curb climate change — from adopting renewable energy to getting people out of cars and onto bicycles — would add up to about twice the cost of rolling out those policies globally, and even more in China and India, the WHO said, citing a recent study.
WHO scientist and report author Diarmid Campbell-Lendrum said health had often been disconnected from discussions on climate change, but there was now an urgent need to break down the barriers and talk about the benefits for society.
“This is the same fight, and we have the same answers,” he added.
In the 15 countries that emit the most greenhouse gases, the cost of air pollution for public health is estimated at more than 4 percent of gross domestic product, the WHO report said.
In comparison, keeping warming to the Paris deal temperature limits would require investing about 1 percent of global GDP.
Kristie Ebi, professor of global health at the University of Washington, said the world now had scientific evidence that “people today are suffering and dying from climate change.”
The consequences range from chronic diseases linked to air pollution, such as asthma and lung cancer, to under-nutrition as crop yields fall and rising carbon dioxide levels in the air slash nutrients in staple foods, she added.
Inia Seruiratu, Fiji’s minister of agriculture and disaster management, said his nation was already experiencing the health effects of climate change, such as an increase in water-borne diseases after storms and floods.
It is working to build solar-powered health clinics that can also withstand strong winds and other extreme weather, he noted.
Despite such efforts, the WHO report said financial support — particularly for small island nations and the poorest countries — remains “woefully inadequate.”