Next Article in Journal
Extreme Precipitation Events in Serbia: Defining the Threshold Criteria for Emergency Preparedness
Previous Article in Journal
Microclimate Metrics Linked to the Use and Perception of Public Spaces: The Case of Chillán City, Chile
Article Menu
Issue 5 (May) cover image

Export Article

Open AccessArticle
Atmosphere 2018, 9(5), 187;

Projected Changes in Wet-Bulb Globe Temperature under Alternative Climate Scenarios

CSIRO Oceans and Atmosphere, Commonwealth Scientific and Industrial Research Organisation, Canberra, ACT 2601, Australia
Centre for Supply Chain and Logistics, Faculty of Science, Engineering and Built Environment, Deakin University, Melbourne Burwood Campus, Burwood, VIC 3125, Australia
Author to whom correspondence should be addressed.
Received: 6 April 2018 / Revised: 11 May 2018 / Accepted: 14 May 2018 / Published: 15 May 2018
(This article belongs to the Section Climatology and Meteorology)
Full-Text   |   PDF [5412 KB, uploaded 15 May 2018]   |  


The increased levels of Greenhouse Gasses (GHGs) in the atmosphere will result in increased near-surface air temperature and absolute humidity. These two factors increasingly pose a risk of heat stress to humans. The Wet-Bulb Globe Temperature (WBGT) is a widely used and validated index for assessing the environmental heat stress. Using the output from the Coupled Model Intercomparison Project Phase 5 (CMIP5) simulations of the four Representative Concentration Pathways (RCPs), we calculated the global and regional changes in WBGT. Globally, the WBGT is projected to increase by 0.6–1.7 °C for RCP 2.6 and 2.37–4.4 °C for RCP 8.5. At the regional scale, our analysis suggests a disproportionate increase in the WBGT over northern India, China, northern Australia, Africa, Central America and Southeast Asia. An increase in WBGT has consequences not only on human health but also on social and economic factors. These consequences may be exacerbated in developing economies, which are less able to adapt to the changing environmental conditions. View Full-Text
Keywords: wet-bulb globe temperature; representative concentration pathways; heat stress wet-bulb globe temperature; representative concentration pathways; heat stress

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Newth, D.; Gunasekera, D. Projected Changes in Wet-Bulb Globe Temperature under Alternative Climate Scenarios. Atmosphere 2018, 9, 187.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Atmosphere EISSN 2073-4433 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top