Everyone needs safe and clean water to drink. Yet industry, agriculture and urban activities threaten fresh water. In particular, metal pollution can be very hard to detect early. Because of this, ...

Researchers from Italy, Chile and Galicia have studied and compared the light pollution levels at major astronomical observatories across the world. The study shows that light is polluting the sky ...

Some countries are known for having dangerously high pollution levels, poor sanitation, and large amounts of unmanaged waste. These problems are usually caused by overpopulation, industrial activity, ...