Feats of green in the Heartland, LED lighting

Dark-sky town opts for 2200K LED streetlights to limit light pollution

💡 Feature, MIT Tech Review: Bright LEDs could spell the end of dark skies

🔆 Feature, Ars Technica: 'Elephant in the room' — Clean energy’s need for unsustainable minerals

Ars Technica: Lithium costs a lot of money—so why aren’t we recycling lithium batteries?

‘Whoop’ says the whale: New machine learning method could improve detection of endangered species

Study of Greenland ice core reveals new clues about historic climate changes

Wildfire smoke and coronavirus deepen air quality inequities

Under your nose: How response to natural gas leaks could change through new research

Envisioning circular Boulder: Ideas to shape our sustainable future