Forget about oil or gas – you should be worrying about the less discussed but far more concerning fact that the world is running out of clean, drinkable water.
The discovery is an exciting opportunity for theorists and experimentalists, and a beautiful example of how even the most familiar substance still has secrets hiding within.
Motivated by public hazards associated with contaminated drinking water, scientists have successfully tested tiny, glowing crystals that can trap heavy-metal toxins like mercury and lead.