What is reliable surface runoff? What percentageof the world’s reliable runoff are we using and whatpercentage are we likely to be using by 2025? Howis most of the world’s water used? What is a waterfootprint? Define and give two examples of virtualwater. Describe the availability and use of freshwaterresources in the United States and the water shortagesthat could occur during this century. Define freshwater scarcity stress, and explain how widespread it is and how serious it may be by 2050. What percentageof the earth’s land suffers from severe drought todayand how might this change by 2059? How manypeople in the world lack regular access to clean watertoday? Summarize the importance of the ColoradoRiver basin in the United States and how humanactivities are stressing this system. What are threemajor problems resulting from the way people areusing water from the Colorado River basin?
What is reliable surface runoff? What percentage
of the world’s reliable runoff are we using and what
percentage are we likely to be using by 2025? How
is most of the world’s water used? What is a water
footprint? Define and give two examples of virtual
water. Describe the availability and use of freshwater
resources in the United States and the water shortages
that could occur during this century. Define freshwater scarcity stress, and explain how widespread it is and how serious it may be by 2050. What percentage
of the earth’s land suffers from severe drought today
and how might this change by 2059? How many
people in the world lack regular access to clean water
today? Summarize the importance of the Colorado
River basin in the United States and how human
activities are stressing this system. What are three
major problems resulting from the way people are
using water from the Colorado River basin?
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