Maue: new climate hiatus or accelerated warming trend coming?


By: - Climate DepotMay 25, 2017 2:08 PM

Guest essay by Dr. Ryan Maue

As you can tell from our blog volume, there’s been a blizzard of new and significant climate findings being published in the refereed literature, and here’s some things You Ought to Have a Look at concerning the recent “hiatus” in warming and what might happen to our (now) post-El Niño climate.

With President Trump still deciding on U.S. participation in the Paris Climate Agreement, new research suggests the Earth’s global mean surface temperature (GMST) will blow past the so-called 1.5°C Paris target in the next decade. But before making that ominous prediction, Henley and King (2017) provide us with a good history lesson on a taboo topic in climate science circles: the recent global warming “hiatus” or “pause” from 1998-2014. One could be forgiven for thinking the hiatus was “settled science” since it featured prominently in the 2013 IPCC AR5 assessment report. But a concerted effort has been made in recent years to discount the hiatus as an insignificant statistical artifact perhaps based upon bad observational data, or a conspiracy theory to distract the public and climate policymakers. Even acknowledging the existence of the “hiatus” is sufficient to be labeled as a climate change denier.

Social scientists, psychologists, and theologians of all stripes feared that widespread community acknowledgement of the hiatus would wither support for climate policy at such a pivotal juncture.

In a 2014 Nature Commentary (Boykoff Media discourse on the climate slowdown) saw the rise of the terms “hiatus and pause” in the media in 2013 as a “wasted opportunity” to highlight the conclusions of the IPCC AR5 report, which in itself ironically struggled with explaining the hiatus/pause (IPCC: Despite hiatus, climate change here to stay. NatureSeptember 27, 2013). Amazingly, in a Nature interview a week prior to AR5’s release, assessment co-chair Thomas Stocker said this: