A new study suggests planting enough trees to cover a landmass the size of the United States.

A group of researchers in Switzerland published a study in the journal Science, arguing that the most effective way to combat the emissions that cause climate change would be to plant a trillion trees. The scientists calculate that a trillion trees could absorb 830 billion tons of carbon dioxide—as much as humans have emitted in the past 25 years.
The report also finds enough space around the planet to make room for the necessary number of trees, identifying Russia, the United States, Canada, Australia, Brazil, and China as the countries with the most available space.
FULL STORY: Best way to fight climate change? Plant a trillion trees

Maui's Vacation Rental Debate Turns Ugly
Verbal attacks, misinformation campaigns and fistfights plague a high-stakes debate to convert thousands of vacation rentals into long-term housing.

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

In Urban Planning, AI Prompting Could be the New Design Thinking
Creativity has long been key to great urban design. What if we see AI as our new creative partner?

King County Supportive Housing Program Offers Hope for Unhoused Residents
The county is taking a ‘Housing First’ approach that prioritizes getting people into housing, then offering wraparound supportive services.

Researchers Use AI to Get Clearer Picture of US Housing
Analysts are using artificial intelligence to supercharge their research by allowing them to comb through data faster. Though these AI tools can be error prone, they save time and housing researchers are optimistic about the future.

Making Shared Micromobility More Inclusive
Cities and shared mobility system operators can do more to include people with disabilities in planning and operations, per a new report.
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