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Report: Climate change will cripple economies regardless of countries wealth

  • Published at 08:54 pm August 21st, 2019
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Scientific consensus is hardening that in order for Earth to avoid the worst scourges of climate change, emissions must peak by 2020 and drastically reduce thereafter AFP/File

Researchers who examined data from 174 countries over 50 years found that persistent temperature changes above or below a country's historical norm adversely affected economic growth

Climate change will damage the economies of countries whether they are rich or poor, hot or cold by the year 2100, economists said in a new report, dispelling the notion that impoverished, warm countries will suffer the most on a warming planet.

Researchers who examined data from 174 countries over 50 years found that persistent temperature changes above or below a country's historical norm adversely affected economic growth, regardless of how warm a country is.

The United States could see a 10% loss in gross domestic product (GDP) without significant policy change.

"In the UK we had the hottest day ever recorded a few days ago and infrastructure came to a halt," Dr. Kamiar Mohaddes, a co-author and a professor of economics at Cambridge University told the Thomson Reuters Foundation on Tuesday.

"Trains aren't running, people aren't coping, and therefore productivity and economic growth falls."

Research has often focused on short-term devastation to poor, warm countries, but the report suggested that wealth and cooler temperatures are no protection from climate change's economic toll if major policy changes are not adopted.

In a "business as usual" scenario where climate change-causing greenhouse gas emissions are not drastically lowered, the average global temperatures will increase by 4°C by 2100.

That would bring more than a 7% loss in world GDP per capita, said the study published on Monday by the US National Bureau of Economic Research, a non-profit economic research organization.

The 2015 Paris Agreement, a global pact to fight climate change agreed to by nearly 200 countries, aims to keep the Earth's temperature rise well below 2°C, striving for 1.5°C.

But even that would require a radical reduction of climate-warming greenhouse gas emissions, a landmark UN report found last year.

The economists' research focused on the United States due to its varied climates, and found that ignoring the Paris accord's goals would affect industries from manufacturing to agriculture, costing the United States more than 10% of its GDP per capita.

"The average American household will be poorer," Mohaddes said, and noted other industrialized countries could be similarly impacted.

Canada, which is warming twice as fast as the rest of the world, could expect a 13% loss in income, while Switzerland could see a 12% cut and India would see a 10% GDP per capita drop.

But adhering to the Paris Agreement goals could hold the loss in the United States to under 2%, the report said.

US President Donald Trump vowed in June, 2017 to pull the United States out of the international agreement, dealing a major blow to the effort to affect climate change. The earliest that could happen is November, 2020.

The report also suggested that while some countries are likely to adapt to climate change, they are unlikely to act in time to ward off all the negative effects to their economies.

"We need to have much stronger mitigation," said Mohaddes. "If we do commit to Paris, the losses are substantially lower. It's not too late."

Researchers from the universities of Cambridge, Southern California, Johns Hopkins, and the National Tsing hua University in Taiwan as well as the International Monetary Fund, contributed to the report.

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