5 eco-friendly cities

What Are The World 5 Greener Cities?

The world's most eco-friendly cities

The Green Cities that Grow

The 10 Most Liveable Cities In The World

Indigenous activist’s message to world leaders

Divers are restoring coral reefs back to life

Why this rare octopod balloons itself

Green Cities - Fit for Life

These Are the Greenest Cities for Fitness, According to Study

10 Worlds Oldest Cities

Europe’s greenest city has free public transport and highways for bees

The 10 Best Cities in the World

The 7 most innovative cities in the world

Earth Day 2014: Green Cities

World’s 10 Best Cities for Expats

The rare and elusive sharks that live for hundreds of years

The truth behind "cute" animal videos

5 good news stories for the planet

How dogs saved a whole village from a lethal disease

Sun dogs: a wintertime phenomenon in the sky

A stork love story

The story of a rare photograph of a Siberian tiger

31 species are extinct, and thousands more endangered

How a 99-year-old still goes on bike rides

How New Caledonia is attempting to save its native plant life