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Low Angle, Locked Down - Underwater view of a man diving into a pool / USA

Pre-K - Higher Ed
Low Angle, Locked Down - Underwater view of a man diving into a pool / USA
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Bright sunlight shines down on Lake Mead and the Colorado River.

Pre-K - Higher Ed
Bright sunlight shines down on Lake Mead and the Colorado River.
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A firefighter screws a clapper valve on a fire hydrant.

Pre-K - Higher Ed
A firefighter screws a clapper valve on a fire hydrant.
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An aerial view follows the Colorado River shoreline near the Hoover Dam.

Pre-K - Higher Ed
An aerial view follows the Colorado River shoreline near the Hoover Dam.
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A building collapses in a flood simulation as water surges around it.

Pre-K - Higher Ed
A building collapses in a flood simulation as water surges around it.
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Golden light hovers over a water treatment facility in New York City.

Pre-K - Higher Ed
Golden light hovers over a water treatment facility in New York City.
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Golden light glows over a waste water treatment facility in New York City.

Pre-K - Higher Ed
Golden light glows over a waste water treatment facility in New York City.
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Sunlight reflects off waves rolling across a river.

Pre-K - Higher Ed
Sunlight reflects off waves rolling across a river.
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Levee walls separate a canal from nearby homes.

Pre-K - Higher Ed
Levee walls separate a canal from nearby homes.
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A levee wall separates a canal from a residential area.

Pre-K - Higher Ed
A levee wall separates a canal from a residential area.
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Lake Ponchartrain waters are contained by a concrete levee.

Pre-K - Higher Ed
Lake Ponchartrain waters are contained by a concrete levee.
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A concrete levee contains Lake Ponchartrain waters.

Pre-K - Higher Ed
A concrete levee contains Lake Ponchartrain waters.
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Iguazu falls, Argentina

Pre-K - Higher Ed
Iguazu falls, Argentina
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High Speed Waterfall, pull focus.

Pre-K - Higher Ed
High Speed Waterfall, pull focus.
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High Speed Waterfall, Spain, pan left.

Pre-K - Higher Ed
High Speed Waterfall, Spain, pan left.
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High Speed Waterfall, Spain, tilt down.

Pre-K - Higher Ed
High Speed Waterfall, Spain, tilt down.
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High Speed Waterfall, Spain, pan right.

Pre-K - Higher Ed
High Speed Waterfall, Spain, pan right.
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Concepcion Dam, Sierra Real, Marbella, Spain

Pre-K - Higher Ed
Concepcion Dam, Sierra Real, Marbella, Spain
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Aerial Jordan River in Upper Galilee, Israel

Pre-K - Higher Ed
Aerial Jordan River in Upper Galilee, Israel
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Aerial reservoirs in Negev Desert, Negev, Israel

Pre-K - Higher Ed
Aerial reservoirs in Negev Desert, Negev, Israel
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Aerial Jordan River in Upper Galilee, Israel

Pre-K - Higher Ed
Aerial Jordan River in Upper Galilee, Israel
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Aerial the Dead Sea in the Judea Desert, Einot Tsukim, Israel

Pre-K - Higher Ed
Aerial the Dead Sea in the Judea Desert, Einot Tsukim, Israel
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Aerial the Israel National water carrier in the Valley of Beit Netofa in Lower Galilee, Israel

Pre-K - Higher Ed
Aerial the Israel National water carrier in the Valley of Beit Netofa in Lower Galilee, Israel
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Aerial a tractor spraying crops, Negev, Israel

Pre-K - Higher Ed
Aerial a tractor spraying crops, Negev, Israel