Cities consume over two-thirds of the world’s energy and account for more than 70 percent of global CO2 emissions, while occupying only 2 percent of its land area.

Synthetic plastics have made many aspects of modern life cheaper, safer and more convenient. However, we have failed to figure out how to get rid of them after we use them.

Images of a whale hunt in the Faroe Islands 200 miles north of Scotland have sparked renewed anger from conservationists and animal activists.

Western society looks at insects as vermin that lurk in the dark and spread disease.

"Plogging", an eco-friendly Scandinavian trend that quickly grew in popularity abroad, is hailed as the latest urban fitness boom in China under the label of "trash running".

Vertical farming: eco-friend or foe? Well, the first thing to say — to invoke Jez from "Peep Show" — is that it is not pyramid selling.

Headlines are heated this week in response to Monday’s publication of a new report from the National Academy of Sciences of the United States, suggesting that we are perilously close to the tipping point for a "Hothouse Earth," in which natural feedback loops crank up the warming of the planet to disastrous levels.

Millions of Americans head outdoors in the summer, whether for a day at a nearby lake or a monthlong road trip.

Scientists are warning that a domino effect will kick if global temperatures rise more than 2°C above pre-industrial levels, leading to "hothouse" conditions and higher sea levels, making some areas on Earth uninhabitable.