In North Dakota, one tribe’s fight has sparked a movement.
The Standing Rock Sioux Tribe lost its big case, but the feds stepped in immediately after the decision.
This week, we witnessed tribal and environmental activists gathering in North Dakota in resistance of the Dakota Access Pipeline.
Tensions escalate ahead of a big court date Friday.
Nearly 40 people were arrested during non-violent direct actions on Wednesday.
A court battle is one of the last obstacles remaining in Dakota Access' way.
Police and protesters face off as construction begins on one of the biggest pipelines proposed since Keystone XL.
As food becomes scarce, gulls in Washington state are turning to their own kind.
If Rio's waters weren't cleaned up for Olympic athletes, how can we expect they'll be cleaned up for the city's actual residents?