Australian summer temperatures have risen by 1.66℃ over the past 20 years. In the past century we’ve seen a significant increase in the number, intensity and duration of heatwaves during our summers.

Heat is the natural hazard associated with the highest mortality in Australia. When heatwaves occur, the death toll routinely reaches into the hundreds. For example, the 2009 heatwave across southeast Australia resulted in close to 500 deaths.

Heat is more likely to endanger the health of people with pre-existing conditions, people who are socially isolated, and people who have limited access to air conditioning. These are often older members of the community.

Read the full The Conversation article by Dr Arnagretta Hunter