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Risk Communications

Environmental Change

Food Security and Agriculture

Occupational Health

Health Co-Benefits of Climate Action

Health Systems and Facilities

One Health

Oceans and Human Health

Water, Sanitation and Hygiene

Risk Communications

Health emergencies come in many forms and with increasing frequency, including disease outbreaks, chemical accidents, radiation leaks, and climate-induced extreme weather events such as floods, storms and heatwaves. They create enormous demands for timely, understandable and actionable communication to provide lifesaving information to affected people, decision-makers, donors and concerned public across the world.

Ineffective risk communication could lead to preventable loss of life. Whether preparing a population for an imminent disaster, or developing a campaign to influence long term behaviour change in support of climate goals, risk communication activities play a crucial role in protecting people from the health risks of climate change.

Risk communication used to be viewed primarily as the dissemination of information to the public about health risks and events, such as outbreaks of disease, and instructions on how to change behaviour to mitigate those risks. Today, risk communication is recognized as multi-directional communication and engagement with affected populations so that they can take informed decisions to protect themselves and their loved ones.

Risk communication should use the most appropriate and trusted channels of communication and engagement. It needs to bring together a diverse range of expertise in the field of communication, social sciences (mass media, emergency and crisis communication, social media, health education, health promotion, communication for behaviour change, etc) and systems strengthening in order to achieve public health goals in emergencies.

Case in Point: Communicating Heat Risk

During a heat wave, effective communication planning must begin well in advance of an extreme heat event. Extreme heat and health communication campaigns generally occur over three phases:

  • Before the heat season: communications campaigns focus on raising awareness of heat-health risks.
  • During the heat season: communications provide the public with timely, consistent and accurate information to help them make informed decisions to minimize health risks, such as making use of cooling centres. Many communities around the world have developed heat alert and response systems that encourage people to take action to protect their health.
  • During an extreme heat event: Rapid communication materials emphasize 3-7 bits of familiar information that audiences can and should remember. Multiple, diverse channels are coordinated to distribute and reinforce heat health messages. Local media is leveraged to establish credibility and ensure dissemination of consistent messages.

Tools

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Evidence

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Research

Communicating disaster risk? An evaluation of the availability and quality of flood maps

EN

Henstra D, Minano A and Thistlethwaite J

Research

Communicating risk for a climate-sensitive disease: A case study of Valley Fever in Central California

EN

Matlock M, Hopfer S and Ogunseitan OA

Research

Communicating the deadly consequences of global warming for human heat stress

EN

Matthews TK, Wilby RL, Murphy C

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