Change points of global temperature

We aim to address the question of whether or not there is a significant recent ‘hiatus’, ‘pause’ or ‘slowdown’ of global temperature rise. Using a statistical technique known as change point (CP) analysis we identify the changes in four global temperature records and estimate the rates of temperatur...

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Main Authors: Niamh Cahill, Stefan Rahmstorf, Andrew C Parnell
Format: Article
Language:English
Published: IOP Publishing 2015-01-01
Series:Environmental Research Letters
Subjects:
Online Access:https://doi.org/10.1088/1748-9326/10/8/084002
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author Niamh Cahill
Stefan Rahmstorf
Andrew C Parnell
author_facet Niamh Cahill
Stefan Rahmstorf
Andrew C Parnell
author_sort Niamh Cahill
collection DOAJ
description We aim to address the question of whether or not there is a significant recent ‘hiatus’, ‘pause’ or ‘slowdown’ of global temperature rise. Using a statistical technique known as change point (CP) analysis we identify the changes in four global temperature records and estimate the rates of temperature rise before and after these changes occur. For each record the results indicate that three CPs are enough to accurately capture the variability in the data with no evidence of any detectable change in the global warming trend since ∼1970. We conclude that the term ‘hiatus’ or ‘pause’ cannot be statistically justified.
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spelling doaj.art-5c5b61fdcb164c0dae8056e35368ac082023-08-09T14:13:05ZengIOP PublishingEnvironmental Research Letters1748-93262015-01-0110808400210.1088/1748-9326/10/8/084002Change points of global temperatureNiamh Cahill0Stefan Rahmstorf1Andrew C Parnell2School of Mathematical Sciences, Complex & Adaptive Systems Laboratory (CASL), Earth Institute, University College Dublin, IrelandPotsdam Institute for Climate Impact Research , GermanySchool of Mathematical Sciences, Complex & Adaptive Systems Laboratory (CASL), Earth Institute, University College Dublin, IrelandWe aim to address the question of whether or not there is a significant recent ‘hiatus’, ‘pause’ or ‘slowdown’ of global temperature rise. Using a statistical technique known as change point (CP) analysis we identify the changes in four global temperature records and estimate the rates of temperature rise before and after these changes occur. For each record the results indicate that three CPs are enough to accurately capture the variability in the data with no evidence of any detectable change in the global warming trend since ∼1970. We conclude that the term ‘hiatus’ or ‘pause’ cannot be statistically justified.https://doi.org/10.1088/1748-9326/10/8/084002hiatuschange pointsglobal temperature
spellingShingle Niamh Cahill
Stefan Rahmstorf
Andrew C Parnell
Change points of global temperature
Environmental Research Letters
hiatus
change points
global temperature
title Change points of global temperature
title_full Change points of global temperature
title_fullStr Change points of global temperature
title_full_unstemmed Change points of global temperature
title_short Change points of global temperature
title_sort change points of global temperature
topic hiatus
change points
global temperature
url https://doi.org/10.1088/1748-9326/10/8/084002
work_keys_str_mv AT niamhcahill changepointsofglobaltemperature
AT stefanrahmstorf changepointsofglobaltemperature
AT andrewcparnell changepointsofglobaltemperature