Finding space for urban greening is as difficult as it is urgent. However, one area where we have been very generous with space in cities is car parking. This study shows that if we can use car parking space more efficiently, we can free up large areas for urban nature.

Detailed modeling of flood hazards in Los Angeles reveals exposure 10-40 times greater than suggested by federally defined flood zones. Across the U.S., urban flood risks may be similarly underestimated.

Should aquaponics be brought to cities on a larger scale? A study on locations for professional aquaponics on a larger scale to achieve self-sufficiency and sustainability of the required production shift.

Our study in Nature Climate Change is the first to consider the policy positioning of university-based energy centers using a “text as data” approach. Analyzing one million+ sentences, we find that reports written by fossil-funded centers are more favorable towards natural gas than renewables.

The UN is being urged to make a bold pledge and set a target of zero for new plastic pollution by 2040 in its upcoming Global Treaty to End Plastic Pollution. Plastic production and subsequent pollution are key drivers of climate change, the focus of discussion at COP27 in Egypt this week.

An apparently simple question about how many people work in the world's protected areas became a complex four-year investigation. The results have major implications for efforts to ensure conservation of at least 30 per cent of the planet.