Issues & Trends

JEFFREY GETTLEMAN

Chelsea Harvey

The human handprint on the natural world has become evident in all too many ways in recent decades.

Christina Copeland

Today marks the annual celebration of one of the world’s most precious, and most wasted, resources. The theme for World Water Day 2017 is wastewater, and the urgent need to reduce and reuse it.

Grant Ervin, Chief Resilience Officer

Pittsburgh will be a resilient city when the entire community shares the same opportunities for prosperity, and when all residents are well cared for and prepared to face potential risks and adversities.

Paulina Concha Larrauri

A large cistern in the ancient city of Resafa, Syria, was filled by channeling periodic floods from a wadi west of the city. The use of complex systems for directing and harvesting water dates back thousands of years.

Martha Henriques

The first large-scale study of cooking stoves that burn solid fuel such as coal or wood has estimated that phasing out the stoves could prevent about 260,000 premature deaths from indoor pollution globally each year.

EVAN ACKERMAN

In 1974, lasers had been around for only 14 years.

Lauren Crothers

Phat Sanday is – in many ways – like any other village in Cambodia. There’s a school, a petrol station and a clinic.

www.theguardian.com - Max Opray

Demand for the metal used in electric car batteries has surged. But extraction could threaten the fragile ecosystem of the world’s largest salt flat.

https://www.theguardian.com

A breakthrough in the race to make useful products out of planet-heating CO2 emissions has been made in southern India.