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Not-So-Vacant Lots

DispatchNew Orleans, LouisianaAlisa Opar
From birds to trees to rats, post-Katrina New Orleans is a study in “disaster ecology.”

The Speed Sweet Spot

ExplainerUnited StatesBrian Palmer

Not too fast, not too slow—how driving speed and free-flowing traffic can lower the carbon emissions from our tailpipes.

Northward Ho!

Latest NewsArctic, AlaskaAlisa Opar
Obama is headed to the Arctic. Here are five things the president should put on his must-do-in-Alaska list.

The Great Oyster Crash

DispatchOregon, WestEric Scigliano
Ocean acidification hits the Pacific shellfish industry.