Cities are danger zones for migrating birds, but there are ways to help feathered visitors pass through more safely
Jan. 15, 2021 • ~9 min
Entire city dims its streetlights, enabling scientists to measure light pollution from space.
Oct. 29, 2020 • ~4 min
Towns and cities create an orange glow on the horizon at night. It's so widespread that it even disturbs sea creatures.
Aug. 11, 2020 • ~6 min