Health benefits far outweigh the costs of meeting climate change goals | The Daily Star
12:00 AM, December 09, 2018 / LAST MODIFIED: 12:00 AM, December 09, 2018

Health benefits far outweigh the costs of meeting climate change goals

Meeting the goals of the Paris Agreement could save about a million lives a year worldwide by 2050 through reductions in air pollution alone. The latest estimates from leading experts also indicate that the value of health gains from climate action would be approximately double the cost of mitigation policies at the global level, and the benefit-to-cost ratio is even higher in countries such as China and India.

A report launched recently by the World Health Organisation (WHO) at the United Nations Climate Change Conference (COP24) in Katowice, Poland highlights why health considerations are critical to the advancement of climate action and outline key recommendations for policymakers.

Exposure to air pollution causes 7 million deaths worldwide every year and costs an estimated US$ 5.11 trillion in welfare losses globally. In the 15 countries that emit the most greenhouse gas emissions, the health impacts of air pollution are estimated to cost more than 4% of their GDP. Actions to meet the Paris goals would cost around 1% of global GDP.

The same human activities that are destabilising the Earth’s climate also contribute directly to poor health. The main driver of climate change is fossil fuel combustion which is also a major contributor to air pollution.

“The true cost of climate change is felt in our hospitals and in our lungs. The health burden of polluting energy sources is now so high, that moving to cleaner and more sustainable choices for energy supply, transport, and food systems effectively pays for itself,” says Dr Maria Neira, WHO Director of Public Health, Environmental and Social Determinants of Health. “When health is taken into account, climate change mitigation is an opportunity, not a cost.”

Switching to low-carbon energy sources will not only improve air quality but provide additional opportunities for immediate health benefits. For example, introducing active transport options such as cycling will help increase physical activity that can help prevent diseases like diabetes, cancer and heart disease.

WHO’s COP-24 Special Report: health and climate change provides recommendations for governments on how to maximise the health benefits of tackling climate change and avoid the worst health impacts of this global challenge.

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