The level of CO2 – a potent greenhouse gas – is on course to
rise 3.3 parts per million this year, an acceleration from 3 ppm in 2015, said
Paul Fraser, an honorary CSIRO fellow.
"It will be the highest [rate of growth] we've ever
seen," Dr Fraser told Fairfax Media, citing data collected at the
north-west Tasmanian site at Cape Grim, the premier global atmospheric tracking
centre in the southern hemisphere.
CO2 levels at Cape Grim are now at 401.7 ppm and, given the
smaller seasonal fluctuation than in the northern hemisphere, are certain to
remain above 400 ppm for many years.
Read Peter Hannam’s story in today’s Melbourne Age - “'Milestone': Global greenhouse gas levels accelerate past key marker.”
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