While it may be tempting to blame hurricanes Katrina and Rita on global warming, an MIT climatologist says that it's wrong to blame any single event on long-term climate change. However, the power of tropical storms is increasing.
"There are troubling signs in the meteorological record of a link between global warming and hurricane intensity, says Emanuel, a professor in MIT's Department of Earth, Atmospheric and Planetary Sciences. But the best available science suggests that the now-scattered populations of the Texas, Louisiana, Mississippi, and Alabama coasts are the victims of mere happenstance.
...What Emanuel does believe is that the average power of many tropical cyclones -- the blanket terms scientists use for hurricanes, typhoons, and cyclones -- has risen sharply over the past several decades, at least in the North Atlantic and North Pacific. Moreover, the increase is closely tied to changes in the surface temperatures of the oceans where tropical cyclones are born. In other words, when the sea surface temperature rises, the energy of the cyclones above that surface also rises -- and at an even faster rate."
FULL STORY: The Gulf Coast: A Victim of Global Warming?

Manufactured Crisis: Losing the Nation’s Largest Source of Unsubsidized Affordable Housing
Manufactured housing communities have long been an affordable housing option for millions of people living in the U.S., but that affordability is disappearing rapidly. How did we get here?

Americans May Be Stuck — But Why?
Americans are moving a lot less than they once did, and that is a problem. While Yoni Applebaum, in his highly-publicized article Stuck, gets the reasons badly wrong, it's still important to ask: why are we moving so much less than before?

Research Shows More Roads = More Driving
A national study shows, once again, that increasing road supply induces additional vehicle travel, particularly over the long run.

Judge Halts Enforcement of Anti-Homeless Laws in Grants Pass
The Oregon city will be barred from enforcing two ordinances that prosecute unhoused residents until it increases capacity and accessibility at designated camping sites.

Advancing Sustainability in Los Angeles County Schools
The Los Angeles County Office of Education’s Green Schools Symposium brings together educators, students, and experts to advance sustainability in schools through innovative design, climate resilience strategies, and collaborative learning.

Using Old Oil and Gas Wells for Green Energy Storage
Penn State researchers have found that repurposing abandoned oil and gas wells for geothermal-assisted compressed-air energy storage can boost efficiency, reduce environmental risks, and support clean energy and job transitions.
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
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Learn the tools for implementing Universal Design in planning regulations.
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NYU Wagner Graduate School of Public Service
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