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The Mekong River Basin is home to 60 million people, of whom 70 percent are engaged in subsistence agriculture. These culturally diverse people are among the poorest in Asia, and they depend heavily on the river and its tributaries for food, income, transportation, and drinking water. As such, they are highly vulnerable to changes in climate. One of the expected consequences of this change is rising temperatures. As temperatures rise, many species of crops, fish and animals lose their vigor and are less able to compete, while other animal, plant and insect species move in to take their place. This can be very disruptive to agriculture and fisheries and the people that depend on them. Another change that scientific models predict is a substantial increase in weather variability. This too can have a dramatic effect on the kinds of crops that can be grown or harvested from nearby land.

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