Hitting toughest climate target will save world $30tn in damages, analysis shows

Almost all nations would benefit economically from keeping global warming to 1.5C, a new study indicates

Achieving the toughest climate change target set in the global Paris agreement will save the world about $30tn in damages, far more than the costs of cutting carbon emissions, according to a new economic analysis.

Most nations, representing 90% of global population, would benefit economically from keeping global warming to 1.5C above pre-industrial levels, the research indicates. This includes almost all the world’s poorest countries, as well as the three biggest economies – the US, China and Japan – contradicting the claim of US president, Donald Trump, that climate action is too costly.

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Australia and South Africa would also benefit, with the biggest winners being Middle East nations, which are threatened with extreme heatwaves beyond the limit of human survival.

However, some cold countries – particularly Russia, Canada and Scandinavian nations – are likely to have their growth restricted if the 1.5C target is met, the study suggests. This is because a small amount of additional warming to 2C would be beneficial to their economies. The UK and Ireland could also see some restriction, though the estimates span a wide range of outcomes.

The research, published the journal Nature, is among the first to assess the economic impact of meeting the Paris climate goals. Data from the last 50 years shows clearly that when temperatures rise, GDP and other economic measures fall in most nations, due to impacts on factors including labour productivity, agricultural output and health.

Read more: The Guardian

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