4:18
Traffic Poses A New Threat To Yosemite’s Famous Bears
Bear sightings at Yosemite National Park are down, but the park’s infamous traffic poses a new threat.
24:46
Can We Outbuild Future Coastal Flooding?
The Army Corps of Engineers is investigating sea gates and other barriers to protect New York from a future Sandy. But others have doubts.
The Man Who Builds Beaches
In this excerpt from “The World in a Grain,” beach sand is gold. Illegal sand mining and rising seas are shrinking beaches, but this man is working to replenish them.
3:55
After New Jersey Floods, Rebuild Or Retreat?
Instead of rebuilding after repeated flooding, New Jersey is offering some homeowners a buyout.
4:56
Onetime Miracle Ingredient, Now An Environmental Problem
States across the country are holding public hearings on what to do about contamination with a class of persistent chemicals known as PFAS.
7:06
The Scientific Strategy Of Soccer Dives
It’s all about the dynamics of risk and reward.
7:42
What Are The Economics Of Immigration?
New research finds migrants and refugees boost the economies of countries they come to within just two years.
4:50
Marine Habitats Are Protected—But Are They Effective?
Ten percent of the world’s oceans are on track to be protected by 2020. But do they need to be?
16:16
What Can Scientists Bring To Congress?
Many scientists are showing up on the ballot this year. What unique perspectives can they bring to the political process?
Drawing Congressional Districts Is Like Sudoku
It’s just simple math, on a map, and on steroids.