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The Harvard Climate Brief brings expertise on climate change and sustainability to the wider world. Authors’ views are their own. Republish.

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hot sun in the city

When heat hits home: Climate change’s hidden and deadly toll

Buildings, housing conditions, and access to cooling shape the health risks of extreme heat. A study from Boston shows how the cost of buying and running air conditioning can leave high-risk residents without protection.
Health
Mon, Aug 10, 2026
hand blocking sun

When a heat wave is coming, who is most at risk?

A free new tool makes cutting-edge data streams available to anyone, helping planners map where extreme heat, health risks, and vulnerability collide – block by block.
Health
Wed, Jul 29, 2026
child flood

Climate anxiety is real. That does not make it a diagnosis

A child psychiatrist explains why distress over climate change should not be reduced to individual pathology.
Health
Mon, Jun 29, 2026
May’s heatwaves offer early warning for workers

May’s heatwaves offer early warning for workers

As cities prepare for hotter summers, protecting people on the job will require enforceable rules, local action, and workers’ voices.
Health Law & Policy
Thu, Jun 4, 2026
spring in Boston

Climate change and pollution are worsening your allergies

An allergist explains how longer pollen seasons, pollution, and milder winters are changing symptoms – and how to prepare.
Health
Mon, Mar 30, 2026
Smokestacks at sunset

Ignoring lifesaving when regulating air pollution: An explainer

The Trump administration says it will no longer quantify the health benefits of reduced air pollution. Here’s what that means and why it matters.
Health Law & Policy
Wed, Jan 21, 2026
Sunset silhouette of smokestack carbon emission plumes at a coal fired power plant in Wyoming

Clean air rules save lives, and are required by law

What are the legal risks and health consequences of the Trump administration’s proposals to eliminate two clean air regulations for power plants? A lawyer and doctor explain.
Health Law & Policy
Tue, Jul 22, 2025
lung doctor

Breathe easier? Not without the science 

By canceling a multi-year study of older people with lung disease – a few months before it was due to end – the Trump administration has left patients without help, doctors without answers, and wasted taxpayer dollars.
Health
Fri, May 16, 2025

All perspectives expressed in the Harvard Climate Brief are those of the authors and not of Harvard University or the Salata Institute for Climate and Sustainability. Any errors are the authors’ own. The Harvard Climate Brief is edited by an interdisciplinary team of Harvard faculty.