Index shows global warming is accelerating

  • 14/11/2017

Human-induced global warming is happening faster than ever and accelerating, according to an international team of researchers.

The team, which includes Victoria University's Professor Dave Frame, has developed the real-time Global Warming Index.

Prof Frame says a robust, continuously updated index of human-induced warming - "the only component of global temperatures we have any control over" - is essential to monitor progress toward meeting temperature goals.

The index and its data are the subject of a paper in the Nature research journal Scientific Reports.

The authors says the index has been has been increasing continuously since the 19th century, with no pause in recent decades.

Worryingly, it appears to be accelerating, despite the recent slowdown in carbon dioxide emissions, because of trends in other climate pollutants, notably methane.

Warming exceeded 1degC above mid-19th century levels in 2017 and is increasing at a rate that leaves little time to achieve the goals of the Paris Climate Agreement.

The researchers say they combined temperature observations with measurements of drivers of climate change to provide an up-to-date estimate of the human contribution to global warming.

The index will be updated continuously at www.globalwarmingindex.org.

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