A new study by researchers at Columbia University estimates how predicted changes in the levels and locations of snowfall will affect water supplies.
Sindya N. Bhanoo reports on a new study lead by Justin S. Mankin, analyzing 421 drainage basins in the Northern Hemisphere that depend for models of how climate change might affect water supplies.
Worldwide, the study's findings indicate that "97 basins, currently serving two billion people, depend heavily on snowmelt. The scientists calculated that the likelihood the basins would receive less snow in the coming century was 67 percent." The two basins most at risk in the United States are already experiencing historic droughts. According to the study, "[t]he most sensitive basins in the United States include those in Northern and Central California, and those of the Colorado and Rio Grande rivers."
FULL STORY: Billions of People Depend on Water From Shrinking Snowpacks

Rethinking Redlining
For decades we have blamed 100-year-old maps for the patterns of spatial racial inequity that persist in American cities today. An esteemed researcher says: we’ve got it all wrong.

Planetizen Federal Action Tracker
A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

Walmart Announces Nationwide EV Charging Network
The company plans to install electric car chargers at most of its stores by 2030.

New State Study Suggests Homelessness Far Undercounted in New Mexico
An analysis of hospital visit records provided a more accurate count than the annual point-in-time count used by most agencies.

Michigan Bills Would Stiffen Penalties for Deadly Crashes
Proposed state legislation would close a ‘legal gap’ that lets drivers who kill get away with few repercussions.

Report: Bus Ridership Back to 86 Percent of Pre-Covid Levels
Transit ridership around the country was up by 85 percent in all modes in 2024.
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