How people are tackling 'eco-anxiety' around the world

Studying melting ice in Greenland for clues to key Atlantic ocean current

Research finds culprit behind mass sea star deaths

In global electricity mix, renewables overtake coal for the first time

Mexico City's 'tree army' protects the urban forest

Climate change exacerbates Canada's fire season

Weaning Europe off of coal won't be easy

Bolivia's public transportation relies on cable cars

Austria dominates first global tram-driving competition

Surprising places on the Out of Eden Walk

Barcelona's pedestrian islands create peace for some, frustration for others

The most famous voice in Japan

Why shouldn't your pooch fly first class, too?

YouTubers turn travel stress into a game

Airlines boost elite perks for 'silver spoon' travelers

The sounds of (not) silence

Women's motorcycle rally celebrates 75 years

Fishermen limit forays into the Caribbean over fear of US strikes

European bird spotted in New Hampshire

Latin America's open arms approach to migration — and why it's slipping