Coral reefs (pictured) attract tourists with their colourful biodiversity. Leveraging social media data and high-resolution coral maps, Lin and colleagues find that reef tourism supports local conservation, but at large concentrations can also harm reefs.

See Lin et al.

People who self-organize and display cooperative behaviour can avoid the overuse of common-pool resources. Tu and colleagues perform experiments through an online game platform to show that when users share common goals, they self-organize and cooperative behaviour emerges, leading to long-term resource sustainability.

See Tu et al.

Electronic waste that is not properly disposed of can harm the environment, but, as a source of valuable materials such as the gold in the circuit board pictured, it could be beneficial if properly managed. Peng and Shehabi show the scale of the problem and assess the potential of diverse management solutions across the United States.

See Peng and Shehabi.