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.
Mon, Mar 30, 2026
The Harvard Climate Brief brings Harvard faculty expertise on climate change and sustainability to the wider world. Authors’ views are their own. Republish.
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Health
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.
Wed, Jan 21, 2026
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.
Tue, Jul 22, 2025
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.
Fri, May 16, 2025
Climate change is threatening patient care—Here’s how clinics can adapt
An emergency doctor outlines how his team is helping clinics across America prepare for climate disasters.
Tue, Apr 22, 2025
The history of heat waves reveals the urgency of adaptation
The relationship between humans and heat continues to change. Heat waves, once simply a natural phenomenon, are now a symptom of urbanization and global warming.
Thu, Mar 20, 2025
The impacts of heat on lives and livelihoods are far-reaching but poorly understood
With more data on the wide-ranging effects of heat, we can start to identify cost-effective and culturally relevant interventions for adaptation.
Fri, Mar 14, 2025
How exposure to wildfire smoke impacts human health now, soon, and later
The unprecedented Los Angeles fires threaten the health of millions of residents. Two leading biostatisticians unpack the risks in the short- and long-term.
Tue, Jan 21, 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.