Wrong way: 2018 global CO₂ emissions tick up again

Wrong way: 2018 global CO₂ emissions tick up again

Enlarge (credit: Le Quéré et
al./ESSD
)

For a young student, report-card season can be an exciting,
stressful, or even depressing time of year. The annual tally of the
world’s climate-changing greenhouse gas emissions is a little
like that—but with a lot more on the line than a B in language
arts. And unfortunately, 2018’s tally once again brings us short
of a passing mark.

This annual project is the work of a large group of carbon-cycle
scientists that updates the books to be as accurate a record as
possible. The scientists also project the final tally for the
current year based on all the available data at the time of
publication.

Last year, for example, the projection for 2017 was a global
CO2-emissions increase of 2 percent, with error bars spanning
0.8–3.0 percent. This year’s update to the dataset puts the
actual number at 1.6 percent. Interestingly, China’s emissions
were projected to grow 3.5 percent (range 0.7–5.4 percent), but
they appear to have ended up just 1.5 percent higher. Still, that
brought an end to a brief stretch when China’s emissions had
actually declined from a 2013 peak.

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Source: FS – All – Science – News
Wrong way: 2018 global CO₂ emissions tick up again