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Covid-19 recovery poses dire climate, health risks: Lancet

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Populations of 134 countries are now at greater threat from wildfires than at any time previously, and millions of farmers and construction workers are losing income because of the rising number of extremely hot days. AFP

Covid-19 recovery poses dire climate, health risks: Lancet

Countries' fossil-fuel powered Covid-19 recoveries will have long-lasting consequences on human health and risk worsening the food and water insecurity, heatwaves and infectious diseases already threatening billions globally, a major assessment warned on October 21.

The Lancet Countdown is the largest annual study of the impacts of climate change on human health.

It found that up to 19 per cent of Earth’s land mass was affected by extreme drought in 2020 and warned that climate change posed a major threat to food security, which already affects more than two billion people.

Compared with the historic average, the global population of over-65s lived through 3.1 billion additional extreme heat days last year, it found.

Populations of 134 countries are now at greater threat from wildfires than at any time previously, and millions of farmers and construction workers are losing income because of the rising number of extremely hot days.

And climate change is creating ideal conditions for infectious diseases such as dengue fever, Zika virus, cholera and malaria across a far larger span of the globe than just a few decades ago and including Europe, it said.

Lancet Countdown executive director Anthony Costello said: “Climate change is here and we’re already seeing it damaging human health across the world.

“As the Covid-19 crisis continues, every country is facing some aspect of the climate crisis too.”

The assessment found that the five years with the most areas affected by extreme drought have all occurred since 2015.

Disruption to the water cycle due to global heating shortens the time in which plants reach maturity, resulting in small yields putting ever-greater stress on food production.

The Lancet said that yield potential for corn – a global staple – had already declined six per cent compared with 1981-2010 levels.

Wheat has seen a three-per-cent yield potential fall, and rice a 1.8-per-cent fall, it found.

And the marine food upon which 3.3 billion people depend on for either sustenance or income is under “increasing threat”, with average sea temperature rising in nearly 70 per cent of territorial waters compared with just 15 years ago.

The report also warned that nearly three quarters of countries surveyed said they believed they could not afford an integrated national health and climate strategy.

Lead author Maria Romanello said: “This year we saw people suffering intense heatwaves, deadly floods and wildfires.

“These are grim warnings that, for every day that we delay our response to climate change, the situation gets more critical.

“It’s time to realise that no one is safe from the effects of climate change.”

In an editorial, the Lancet called on world leaders at the forthcoming 2021 UN Climate Change Conference (COP26) to divert some of the trillions they are spending on Covid-19 recovery to reduce inequality and safeguard health.

“This year’s indicators give a bleak outlook: global inequities are increasing, and the direction of travel is worsening in all health outcomes.”

AFP in June obtained a draft of an assessment on the impacts of climate change from the Intergovernmental Panel on Climate Change.

It warned that rising temperatures would expose tens of millions more to disease, drought and disease as soon as 2050.

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