Reuters
Fisherman Siem Huat has seen fish stocks dwindle in recent years in Cambodia's majestic Tonle Sap Lake, and with them, his family's sole source of income. Experts say extreme weather brought by climate change, ecological disruption from dam-building, wetland conversions, and overfishing threaten food supplies and livelihoods for the millions who depend on Southeast Asia's largest lake. "Sometimes there is rainfall in the wrong months or it gets so hot I can't go out to fish," said the 45-year-old Siem Huat, as he navigated his boat through mangroves to pull in nets carrying disappointingly few fish.