Lufthansa, Finnair, KLM and British Airways all plan to use a mix of traditional fuel and biofuels made from plants and cooking oil to power their flights.
Beating a regional heat wave with two of nature’s gifts to the Green Mountain state: natural pools and ice cream.
Two can escape to nature in style and luxury with a one-night stay ($166 or $255) at Snoqualmie Falls outside of Seattle. Hike, bike and fish, or take it easy at the links and the spa.
These fairytale fortresses offer trick fountains, curious art collections, dizzying architecture and centuries of history.
SlideshowsIndia’s last surviving headhunters
Their tattoos signify a gruesome rite of passage
The hidden highlands of Hainan
A lush island interior that few visitors see
Where Norway meets New Zealand
A glacier-carved land of breathtaking views
The first World Nomad Games
It's like polo, but with a headless goat
Our favourite images of the week
Stunning images from around the world
DestinationsIn France, new meets old….and weird
Jules Verne's steampunk visions come to lifeFrance