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
According to data from the University of Maine's Climate Change Institute, temperature spikes above normal have become increasingly common in oceans along Cambodia's coastline since 2010.
The incoming hereditary ruler of Cambodia, a country Washington is keen to pull out of Beijing's orbit, could meet CEOs of U.S. firms interested in investing there in New York next month.
Cambodian Prime Minister Hun Sen has stopped using Facebook to communicate with the public in favour of Telegram, switching to what he called a "better" application.