The 18-month drop was the steepest decline since World War II, according to federal statistics. Black and Hispanic Americans were disproportionately affected.
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A 1972 MIT study predicted that rapid economic growth would lead to societal collapse in the mid 21st century. A new paper shows we’re unfortunately right on schedule.
There was a time when rural Guatemalans never left home. But back to back hurricanes, failed crops and extreme poverty are driving them to make the dangerous trek north to the U.S. border.
The triple whammy of the climate crisis, growing human population, and the clearing of wild areas could see Africa's great apes lose 94% of their suitable living areas by 2050, researchers calculate.
A decades-long megadrought spurred by climate change is drying the West. With population growth is straining the system as well, will it run out of water?
In less than two weeks, Olympic swimmers will dive into Tokyo Bay to compete in the triathlon. For residents who live near the shore, that's an unappealing thought because, despite months of efforts to clean up the water, the bay stinks.
About 8.4 billion people — or almost 90 percent of the projected global population — could be exposed to malaria or dengue fever by 2080 if greenhouse gas emissions continue to surge, according to a new study published in The Lancet Planetary Health.
World Population Day is an occasion to reflect on how the world can best address the challenges posed by the combination of urbanization and climate change.
We discuss the myth that Canada has plenty of room for a much larger population, and the many reasons further population growth and "development" in Canada diminishes biodiversity, ecosystem health and quality of life.
More than 5 million people die each year globally because of excessively hot or cold conditions, a 20-year study has found – and heat-related deaths are on the rise.
Nearly 700 million people worldwide live in low coastal zones vulnerable to sea-level rise and coastal storms. That number could reach a billion by 2050. At first (including now), some people will have the resources to move. Others won't.
Economic opportunities, social norms and expanding education and employment options for many women help explain why U.S. fertility has slowed in the late 20th and early 21st centuries.
Cities have long been considered species deserts, devoid of wildlife beyond pigeons and squirrels. But with animals such as snowy owls, otters and bobcats now appearing in urban areas, scientists are recognizing that cities can play a significant role in fostering biodiversity.
A study led by McGill University has found that the Maya settlement in Itzan, now modern-day Guatemala, varied in size over time in response to climate change.
Facing drought and population growth, some Western U.S. towns are running out of water for new connections, stopping development. It's a challenge that's expected to grow as the climate changes.
Scientists have long feared for the future of this densely populated strip of land atop porous limestone as rising global temperatures increase sea levels.
Scientists calculate that by 2100, over 400 million people could live in low-lying, at-risk areas—and that's a conservative estimate, not factoring in explosive population growth in the world's cities.
The Minnesota city on Lake Superior is earning a reputation as a future destination for climate migrants. Experts say the entire Great Lakes region is primed for an influx, prompting questions on how to prepare for coming change.
Opinion: As climate change makes itself felt through heatwaves and floods, are our mega-cities ready?
World Population Day is an occasion to reflect on how the world can best address the challenges posed by the combination of urbanization and climate change.