The potential occurrence of a natural or human-induced physical event that may cause loss of life, injury, or other health impacts, as well as damage and loss to property, infrastructure, livelihoods, service provision, and environmental resources.


IPCC, 2012: Glossary of terms. In: Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation [Field, C.B., V. Barros, T.F. Stocker, D. Qin, D.J. Dokken, K.L. Ebi, M.D. Mastrandrea, K.J. Mach, G.-K. Plattner, S.K. Allen, M. Tignor, and P.M. Midgley (eds.)]. A Special Report of Working Groups I and II of the Intergovernmental Panel on Climate Change (IPCC). Cambridge University Press, Cambridge, UK, and New York, NY, USA, pp. 555-564.

Health and Social Care Act (2012)

The Health and Social Care (2012) Act represents a major re-organisation of health and social care. It encompasses clinically led commissioning, support for innovative practices, allowances for a greater voice for patients, a new focus on public health, more accountability and re-structured management.


Health and Social Care Act Factsheet

Health and Wellbeing Boards

A forum where key leaders from the health and care system work together to improve the health and wellbeing of their local population and reduce health inequalities’‘A forum where key leaders from the health and care system work together to improve the health and wellbeing of their local population and reduce health inequalities.


LGA, 2014 from the Health and Social Care Act (2012)

Heat disadvantage

The maps of heat disadvantage show how heat-related social vulnerability combines with the potential for exposure to heat-related events. They account for both the likelihood of coming into contact with high temperatures and also the severity of negative impacts on the health and wellbeing of local communities that could occur as a result of that contact.



Heat hazard-exposure

The maps of heat hazard-exposure broadly show where there is likely to be a greater chance of coming into contact with heat-related events.



Heat socio-spatial vulnerability

Heat socio-spatial vulnerability refers to mapped social vulnerability with respect to heat-related hazard. The map shows how the personal, social and environmental factors which help to explain uneven impacts on people and communities come together in particular neighbourhoods. It shows where negative social impacts are more likely.




A heatwave is an extended period of hot weather relative to the expected conditions of the area at that time of year. The Met Office run the Heat-health watch system for England. The system works on regional thresholds ranging from the highest in London (32°C by day and 18°C by night) to the lowest in the North East (28°C by day and 15°C by night). These have to be exceeded for more than two consecutive days to trigger responses.


Met Office, 2014

Heatwave Plan for England

The Heatwave Plan for England is a plan intended to protect the population from heat-related harm to health.


Heatwave Plan for England 2014




‘One person living alone, or a group of people (not necessarily related) living at the same address who share cooking facilities and share a living room or sitting room or dining area. This includes sheltered accommodation units in an establishment where 50 per cent or more have their own kitchens (irrespective of whether there are other communal facilities) and all people living in caravans on any type of site that is their usual residence (this will include anyone who has no other usual residence’ elsewhere in the UK). (Census, 2011).