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Environment
Maureen Lichtveld, Dean of the School of Public Health, University of Pittsburgh

8 billion people: Four ways climate change and population growth combine to threaten public health, with global consequences

Climate Change Public Health Centers for Disease Control and Prevention Disease Environment
Infectious diseases like COVID-19 top the list of health concerns. Marco Longari/AFP via Getty Images

There are questions that worry me profoundly as a population- and environmental-health scientist.

Will we have enough food for a growing global population? How will we take care of more people in the next pandemic? What will heat do to millions with hypertension? Will countries wage water wars because of increasing droughts?

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