Improved capacity of professionals, organizations, and governments to protect populations from the preventable health impacts of extreme ambient heat.

  • GHHIN is an independent, voluntary, and member-driven forum of scientists, professionals, and policymakers focused on enhancing and multiplying the global and local learning regarding resilience-building for heat health.

  • It aims to create a common space to promote evidence-driven interventions, shared-learning, co-production of information, synthesis of priorities, and capacity building that can empower multi-disciplinary actors to take more effective and informed life-saving preparedness and planning measures.

  • It seeks to be a catalyst, knowledge broker and forum for facilitating exchange and identifying needs of the most vulnerable.


Following repeated recommendations of technical institutions which called to harmonize and improve our common understanding and decision tools to manage health risks of extreme heat and rising temperatures, GHHIN was launched in June 2016 by experts from over a dozen founding institutions, and spearheaded by the World Health Organization and World Meteorological Organization Joint Office for Climate and Health, and the United States National Oceanic and Atmospheric Administration (NOAA) Climate Program Office.

How we work

GHHIN brings together the work and progress of its members to create a holistic picture of the needs, science and strengths across the network to:

  • rapidly scale up efforts to manage the complex human health risks introduced by extreme and increasing ambient heat
  • harmonize and improve information and opportunity sharing across the burgeoning local communities of health professionals, decision makers and scientists motivated to address this issue.


GHHIN’s programmes and activities help members to generate societal benefits in their own work by facilitating shared learning about applied solutions, harmonizing information, and accelerating improvements in the global capacity to prepare for and respond to extreme heat