A Growing Population, a Shrinking River

By Henry Barbaro

If current trends continue, the Colorado River system will lose its remaining resilience to withstand further dry periods. The combination of declining flows and rising demand threatens the region’s rivers, wetlands, fish, and wildlife.

Mass Immigration is Pushing Wildlife to the Margins

By Henry Barbaro

Wildlife conflicts are not as much the result of animals encroaching on humans, but of people expanding into wildlife space. Human population growth narrows migration corridors, reduces buffer zones, and displaces habitat. As a result, encounters that once would have occurred deep in forests or remote valleys now happen in neighborhoods and school zones.

Drivers of Decline: Environmental Stressors of Chesapeake Bay

By Leon Kolankiewicz

As more people move into the Chesapeake Bay region, development has turned forests, farms and other landscapes into subdivisions, shopping centers and parking lots. As more people have moved in, the health of the Bay has, inevitably, declined.

Overloading Chesapeake Bay: Population Growth Stresses America’s Largest Estuary

By Leon Kolankiewicz

Over the past twenty-five years, NumbersUSA has published numerous scientific reports on the causes and consequences of sprawl in the United States. Our most recent study quantifies ecological decline in the Chesapeake Bay and its watershed over the past three decades. Looking forward, we explore a path toward ecological sustainability centered on stabilizing the region’s population through reduced immigration.

Watershed Woes

By Philip Cafaro

Despite half a century of efforts to improve water quality and restore fisheries in America’s Chesapeake Bay, its ecological health continues to decline. A new study from NumbersUSA quantifies this ecological decline within the Chesapeake Bay watershed, explores its causes, and discusses possible futures.

Negative Net Migration: A Necessary Course Correction

By Jeremy Beck

With millions of inadmissible aliens remaining in the U.S. from the border crisis alone, it is conceivable that we’ll continue to see negative net migration for the next few years. That could change if interior enforcement or self-deportations decline.

California, We Hate to Say We Told You So, But …

By Leon Kolankiewicz

If federal immigration policies driving national population growth continue, California’s environment and residents’ quality of life will pay an ever higher price. There can be no sustainability in a context of ever growing human populations.

Salt Pollution Is Another Cost of Unsustainable Immigration

By Henry Barbaro

Road salt causes long-term water contamination. Mass immigration expands roads and salt use. Population growth makes the damage unavoidable.

2026 will determine the legacy of a historic 2025

By Jeremy Beck

The Laken Riley Act became the first bill to address enforcement failures to be passed by Congress on a bipartisan basis since the 2006 Secure Fence Act. Twenty years ago, the bipartisan support came from the likes of Senators Jeff Sessions (R-AL), John McCain (R-AZ), Joe Biden (D-DE), Hilary Clinton (D-NY) Barack Obama (D-IL), and Charles “Chuck” Schumer (D-NY).