The combination of rising temperatures, dense living and a lack of green spaces means rat populations in our cities are growing. Jack Board and Liling Tan uncover the risks and solutions to the pests beneath our feet.

What happens to Singapore’s gas supplies in times of war?
21:20

Green hydrogen - getting from pipe dream to a potential fuel for the future
21:28

The future so green: Talking to the young who will fill the climate and sustainability jobs of tomorrow | EP 46
23:44