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, ...

On the outskirts of Dhanbad, in India's Jharkhand state, heaps of coal are loaded onto a train car in August. India is the world's third-largest greenhouse gas polluter and relies heavily on coal for ...

Many cities worldwide struggle with air pollution, caused by everything from endless cars to power-guzzling factories. And sadly, in many urban hubs across the globe, air pollution is on the rise – in ...