Hyatt O

Climate change and occupational health: a South African perspective

All Authors: 
Kjellstrom T, Lemke B, Hyatt O, Otto M
Publication Date: 
2014

A number of aspects of human health are caused by, or associated with, local climate conditions, such as heat and cold, rainfall, wind and cloudiness. Any of these aspects of health can also be affected by climate change, and the predicted higher temperatures, changes in rainfall, and more frequent extreme weather conditions will create increased health risks in many workplaces. Important occupational health risks include heat stress effects, injuries due to extreme weather, increased chemical exposures, vector-borne diseases and under-nutrition.

Climate change and increasing heat impacts on labor productivity.

All Authors: 
Kjellstrom T, Lemke B, Otto M, Hyatt O, Briggs D, Freyberg C
Publication Date: 
2015

Summary Extreme heat induced by climate change will cause profound adverse consequences for work, human performance, daily life, and the economy in large parts of the world. The increasing temperatures are the most predictable effects of climate change, and all models of future trends show significant increase this century. The heat problems will become even worse in the next one or two centuries, depending on the global climate policies established this year. The global areas worst affected by extreme heat will be tropical countries,

The risk of heat stress to people

All Authors: 
Kjellstrom T, Woodward A, Gohar L, Lowe J, Lemke B, Lines L, Briggs D, Freyberg C, Otto M, Hyatt O (2015) . In: King D, Schrag D, Dadi Z, Ye Q, Ghosh A, Eds.
Publication Date: 
2015

First paragraph of book chapter: The human body has behavioural and physical mechanisms that work to maintain its core temperature at about 37°C. If the body’s internal temperature rises above this level, then body systems and vital physiological functions are compromised, and in severe cases, death can result. The climatic conditions relevant to such heat stress may be measured in terms of the Wet Bulb Globe Temperature (WBGT), which takes account of temperature, humidity, wind speed, and solar radiation.1 We calculate WBGT for in-shade (no

Heat, human performance and occupational health -- a review and assessment of global climate change impacts

All Authors: 
Kjellstrom T, Briggs D, Freyberg C, Lemke B, Otto M, Hyatt O
Publication Date: 
2016

Ambient heat exposure is a well-known health hazard, which reduces human performance and work capacity at heat levels already common in tropical and subtropical areas. Various health problems have been reported. Increasing heat exposure during the hottest seasons of each year is a key feature of global climate change. Heat exhaustion and reduced human performance are often overlooked in climate change health impact analysis. Later this century, many among the four billion people who live in hot areas worldwide will experience significantly reduced work capacity owing to climate change.

Heat, Human Performance, and Occupational Health: A Key Issue for the Assessment of Global Climate Change Impacts

All Authors: 
Tord Kjellstrom, David Briggs, Chris Freyberg, Bruno Lemke, Matthias Otto, Olivia Hyatt
Publication Date: 
2016

Ambient heat exposure is a well-known health hazard, which reduces human performance and work capacity at heat levels already common in tropical and subtropical areas. Various health problems have been reported. Increasing heat exposure during the hottest seasons of each year is a key feature of global climate change. Heat exhaustion and reduced human performance are often overlooked in climate change health impact analysis. Later this century, many among the four billion people who live in hot areas worldwide will experience significantly reduced work capacity owing to climate change. In

Climate Change and Labour: Impacts of Heat in the Workplace

All Authors: 
Matthew McKinnon, Elise Buckle, Kamal Gueye, Isaiah Toroitich, Dina Ionesca, Eva Mach, Marina Maiero. TECHNICAL AUTHORS: Tord Kjellstrom, Matthias Otto, Bruno Lemke, Olivia Hyatt, Dave Briggs, Chris Freyberg, Lauren Lines
Publication Date: 
2016

Developed in collaboration with the ILO, the International Organization for Migration, UNI Global Union, the International Trade Union Confederation, the International Organization of Employers, and ACT Alliance, and together with the Climate Vulnerable Forum and the support of the the World Health Organisation, this report looks at the impact of rising temperatures due to climate change on the workforce.

Regional maps of occupational heat exposure: past, present and potential future

All Authors: 
Hyatt O, Lemke B, Kjellstrom T
Publication Date: 
2010

Background: An important feature of climate change is increasing human heat exposure in workplaces without cooling systems in tropical and subtropical countries. Detailed gridded heat exposure maps will provide essential information for public health authorities. Objectives: To develop and test methods for calculating occupational heat exposures and present results in easily interpreted maps.