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Ben Geman Mar 22
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Global carbon emissions are on their way back up

Chinese coal-fired plant from 2015 with lots of emissions. The country has made efforts to lower its emissions since then
Smoke billows from a coal-fired generator at a steel factory in Hebei, China, in 2015. Photo: Kevin Frayer/Getty Images

A new International Energy Agency report finds that worldwide carbon dioxide emissions from energy — which are the lion's share of global emissions — ticked upward by 1.4% in 2017 after a three-year plateau.

Why it matters: The findings underscore the immense challenge of reigning in heat-trapping emissions in an increasingly energy-hungry world. Carbon dioxide output is on pace to eventually bring about global warming levels that blow past the targets of the Paris climate agreement.