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Scientists call for ‘gradually reduced’ population to fight climate change

A letter warning of a “climate emergency” signed by more than 11,000 scientists calls for a “gradual reduction” in the world’s population.

The “World Scientists’ Warning of a Climate Emergency” was published in the journal BioScience on Tuesday, and was signed by 11,258 scientists from 153 countries.

In the statement, the signatories listed both economic growth and a global population increase as “among the most important drivers of increases in CO2 emissions from fossil fuel combustion.” The report called for “bold and drastic transformations regarding economic and population policies.”

The statement was published on Tuesday, after the U.S. formally declared that it was withdrawing from the Paris Climate Accord, an international agreement set to go into effect in 2020 under which many UN member countries pledged to reduce their carbon emissions.

The Vatican has supported the Paris agreement, with Secretary of State Cardinal Pietro Parolin stating last year that “climate change is an issue increasingly more moral than technical.”

On Tuesday, the warning issued by the scientists noted a “rapid rise in greenhouse gas emissions” in recent decades along with other factors such as rises in air transport, economic GDP, and energy consumption and a decrease in the size of the Brazilian Amazon rainforest.

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