Human causes of climate change had all been deleted, delaying the report for months.
House Democrats grilled Interior Secretary Ryan Zinke about National Park Service officials deleting references to the human cause of climate change.
Did the National Park Service violate its scientific integrity policy?
The National Park Service has deleted every mention of humans’ role in climate change in drafts of a report on risks from rising seas and storm surge.
Wildlife officials predict deadly consequences for migratory birds, millions of which are killed inadvertently each year by industrial activities.
Environmentalists worry the development in Arizona will deplete the San Pedro, the Southwest’s last major free-flowing river.