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McKinsey: options for a low-carbon economy

McKinsey & Company has mapped out a couple of conceivable scenarios that would put humanity on a pathway to stabilize greenhouse gas concentrations well below 550 parts per million, an oft-cited and somewhat arbitrary target that increases the odds of avoiding a temperature increase of more than 2 degrees Celsius. Whether or not such action would actually guarantee said result is a different matter, but McKinsey suggests it’s possible to come in at 480 ppm, which leaves a little room for error. 


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