Immigration was the sole driver of the United States' population growth in a single year for the first time since records ...

The U.S. immigrant population grew by 1.6 million people while birth rates dropped, though the share of those who are foreign ...

Fragments of a partial skull unearthed in a cave in northern Spain have revealed a previously unknown population of ancient ...

Most of the world has dirty air, with just 17% of global cities meeting WHO air pollution guidelines, a report Tuesday found.

The Biden administration’s immigration legacy is facing intense scrutiny as new allegations suggest officials “cooked the ...

The Federation for American Immigration Reform estimates that, as of March 2025, there are approximately 18.6 million illegal immigrants living in the U.S.

An alarming new study shows the overall population of butterflies is declining sharply. NBC News' Maya Eaglin spoke with ...

China will provide childcare subsidies and make preschool education free as it tries to boost the country's declining ...

The population wintering in central Mexico's forests occupied 4.42 acres, up from 2.22 acres during the previous winter.

Caregivers lacking respite and support, seniors who need more age-friendly infrastructure and financial security – will ...

As Indiana anticipates slow population growth in the coming years, small cities and towns in rural Indiana are pushing ...