How scientists in Morocco hope to turn huge slag piles of coal mining waste into bricks and transform the city of Jerada in the process.
The city of Jerada in northeastern Morocco exists because of coal. The city grew up around a major coal mine that opened early last century. But when the mine closed almost 20 years ago, the local economy collapsed and Jerada was left with huge piles of mining waste towering over its centre. Read more in Canadian Geographic.