Displaying items by tag: population growth

Flooding is seen outside a popular hotel in Pakistan following historic and devastating flooding linked largely to the melting of highland glaciers.  Wikipedia Commons

Global population growth promises a drastic spike in public health emergencies

This story was originally published by The Conversation. Maureen Lichtveld is dean of the School of Public Health at the University of Pittsburgh. 

There are questions that worry me profoundly as an environmental health and population 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?

These risks all have three things in common: health, climate change and a growing population that the United Nations determined passed 8 billion people in November 2022, which is double the population of just 48 years ago.

A great blue heron is seen above a nest in the Tennessee River Valley. Herons moved northward to the valley from tiny remaining Florida rookeries after the birds were annihilated in the early 20th century for hat decorations. Betty Thompson

After their kind almost vanished, great blue herons took a minute to take to the Tennessee Valley. Now they are here in a big way. 

“Life breaks free, it expands to new territories, and crashes through barriers painfully, maybe even dangerously, but, uh, well, there it is,” said Jeff Goldblum’s Malcolm in ‘Jurassic Park.’ “Life finds a way.”

In the early 20th century, after it became illegal to hunt for feathers, as referenced in this previous Hellbender Press story, herons began to recover.

But it took a while. The curious thing with great blue herons, which perhaps attests to the tenacity of nature itself, is that for years they really had little presence in the Tennessee Valley, even after the principal dams and reservoirs were completed. There were plenty of shallow waters for fish eaters.