This map shows the average exposure of water users in each river basin to water stress, the ratio of total withdrawals to total renewable supply in a given area. A higher percentage means more water users are competing for limited supplies.
When corals undergo certain kinds of stress, much of the zooxanthellae -- the symbiotic algae that provide coral polyps with nutrients -- are expelled from the coral tissue.
The use of cyanide to stun and capture live coral reef fish began in the 1960s in the Philippines to supply the growing market for aquarium fish in Europe and North America, a market now worth more th
About 9 percent of the world's mapped reefs are found in this region, most of which are located along the Central American coast and off the Caribbean islands.
Over 80 percent of the reefs in this region are at risk, and over half (56 percent) are at high risk.
Of the 2.6 billion people who live on less that $2 per day, almost 2 billion live in rural areas, in countries whose economies and people are most dependent on natural resources.
The right of access to information in guaranteed in the constitutions of many countries.
The Reefs at Risk Threat Index identified about one-tenth of Caribbean coral reefs at very high levels of threat, one-third at high threat, one-fifth at medium threat, and one-third at low threat.
Some 2.6 billion people live on less than $2 per day, with three quarters of them in rural areas.