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Cities are home to 55 per cent of the world’s population, all jammed together cheek-by-jowl. Little wonder, then, that cities are being hit hardest by COVID-19: an estimated 90 per cent of all reported cases have occurred in urban areas.…

Ant Forest is a mobile game that has become China’s largest private sector tree-planting scheme. The game has funded the planting of more than 120 million trees, covering more than 100,000 hectares. The project has contributed to China becoming the…

For ten years, Dixon Parmuya has guided tourists on bush walks around Amboseli National Park in Southern Kenya. But since COVID-19 swept through Kenya in mid-March, the country’s tourism industry has dwindled, leaving many locals without jobs and animals without…

The more the planet warms, the more cities are finding they need new ways to keep urban temperatures down and protect their residents. Heatwaves are already by far the deadliest weather-related disasters in Europe; 140,000 deaths associated with 83 heatwaves…

For many of the 30,000 people who live in the remote Rufiji Delta of northern Tanzania, life revolves around one thing: mangroves. These trees and bushes, which thrive in the delta’s brackish water, are sources of building materials, firewood and…

There was a time when industrial agriculture seemed to be a panacea for a fast-growing world. Synthetic fertilizers, chemical pesticides and high-yield cereal hybrids promised to reduce hunger, accommodate growing populations and stimulate economic prosperity. Between 1960 and 2015, agricultural…

Coordinated international action on energy-efficient, climate-friendly cooling could avoid as much as 460 billion tonnes of greenhouse gas emissions – roughly equal to eight years of global emissions at 2018 levels – over the next four decades, according to the…