Famed climate scientist James Hansen and colleagues from a diverse array of disciplines, including economist Jeffrey Sachs, make the case that warming needs to be kept below the widely cited figure of 2 degrees Celsius, by means of a carbon tax.
Famed climate scientist James Hansen and colleagues from a diverse array of disciplines, including economist Jeffrey Sachs, make the case that warming needs to be kept below the widely cited figure of 2 degrees Celsius, by means of a carbon tax.
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