Cement dominates the construction industry worldwide. But it's a highly polluting material. One company in Thailand is aiming to change that.
Volunteers are helping the Pangandaran region back on its feet after a tsunami battered the region. They’re reforesting mangrove forests, building coral reefs and spreading climate awareness.
The country wastes energy pumping fresh water from below sea level. New pumps make a difference.
Surrounded by desert and faced with water scarcity, the Peruvian capital is exploring new options.