Leather is part of many of our wardrobes, but producing it creates carbon pollution and drives deforestation. Thanks to science, sustainable lab-grown leather could soon be a reality. Entrepreneur Andras Forgacs explains how it works.

Due to light pollution near cities, many people can no longer see stars in their night skies, but astrophotographer Jack Fusco has traveled to dark places around North America to show us the wonders that still exist up there.

The Arctic is warming at twice the rate of the global average, so it’s essential for scientists to study this climate now so they can better understand our warming world. Photographer Esther Horvath braved bone-chilling temperatures to capture these beautiful scenes of researchers at work.

Right now we’re living in the middle of a climate crisis and a housing crisis (oh, and a pandemic). Smaller spaces — like houses that are 400 square feet and less — could help us address both. Here’s how.

As global temperatures rise, greening the world’s hottest megacities like Cairo, Egypt, and Dhaka, Bangladesh, can help prevent air pollution and reduce heat. And in densely packed urban areas, a great place to start is on the rooftops.

Environmental groups often use frightening images to sound the alarm on big issues — but to be effective at inspiring action, climate-related visuals need to promote hope rather than fear. Here, eight designs with an optimistic vision, and how the artists are driving change in their own lives.

More than half of the global population lives in cities, and that number is projected to rise in the coming years. So how do we accommodate a growing urban population while keeping greenhouse gas emissions low? These innovative cities are leading charge by putting people first.