Climate Change 'Biggest Global Health Threat' of Century, Doctors Warn

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India has witnessed an increase of 40 million in the number of people exposed to heatwaves from 2012 to 2016 (including both years), according to The Lancet Countdown report on health and climate change, which termed the surge an imminent danger to health.

In an inaugural collaboration between the Medical Journal of Australia and the The Lancet, 19 experts from 13 of the nation's top universities and research institutes assessed 41 indicators across five key areas including climate change impacts, exposures and vulnerability; adaptation, planning and resilience for health; Mitigation actions and health co-benefits; Economics and finance; and Public and political engagement. In comparison to the year 2000, there were 157 million more. This is what we typically do with the regional and local GAINS model: "giving advice to policymakers on the most efficient approaches to tackle air pollution in their specific settings", says Kiesewetter. The report added that the Canadian health authorities should focus on estimating the real numbers of people affected by air pollution, something that's not happening in the majority of Canadian provinces.

In 2017, 153 billion hours of labour were lost due to heat exposure, an increase of 62 billion hours since 2000. This led to 1.1 billion hours of labour.

Heat stress, an early and severe effect of climate change, is commonplace and we, and the health systems we rely on, are ill equipped to cope. Rising temperatures are a risk in occupational health, and as temperatures regularly increase above physiological limits, sustained work becomes more hard or impossible. In high temperatures, outdoor work, especially in agriculture, is hazardous.

A new report from The Lancet revealed that climate change, air pollution, and life-threatening floodings, among others, are exposing Canadians to high health risks.

Rising temperatures and unseasonable warmth is responsible for cholera and dengue fever spreading, with vectorial capacity for their transmission increasing across many endemic areas. We see them jointly.

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Renee Salas, director of emergency medicine at Massachusetts General Hospital and the lead author of the report's U.S. chapter said that people with asthma attacks and heat stress are being treated more commonly than before.

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.

"The world has yet to effectively cut its emissions. Lancet had shared summary data sets with us", said Dr Poornima Prabhakaran, associate professor and deputy director of the Centre for Environmental Health at PHFI, co-author of the briefing paper.

"Climate change is a threat to our survival and is the public health challenge of our lifetime", Benjamin said.

Dr. Courtney Howard, an emergency physician from Yellowknife who wrote the Canadian section of the report, said right now the world is on pace for temperature increases we can't adapt to, resulting in more deaths and disease. Yield potential is estimated to be declining in every region as extremes of weather become more frequent and more extreme.

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