Articles on Irrigation

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Sprinklers water a lettuce field in Holtville, California with Colorado River water. Sandy Huffaker/AFP via Getty Images

The Colorado River drought crisis: 5 essential reads

Two decades of drought have reduced the river’s flow by one-third compared to historical averages. The Biden administration is considering mandatory cuts to some states’ water allocations.
Exposed lakebed at the Salton Sea on Dec. 29, 2022. RJ Sangosti/MediaNews Group/The Denver Post via Getty Images

Human actions created the Salton Sea, California’s largest lake – here’s how to save it from collapse, protecting wild birds and human health

Fifty years ago, the Salton Sea was a draw for boaters and fishermen; today it’s an ecological time bomb. Two water experts who served on a state review panel describe its proposed rescue plan.
Scientists say that wasting coffee and water while making a cup of coffee has a larger carbon footprint than using coffee capsules. (Unsplash)

Here’s how your cup of coffee contributes to climate change

Coffee capsules aren’t the biggest carbon culprits. It’s better to use a capsule than to waste coffee and water.
Wireless sensors and data systems can help farmers use water much more efficiently by monitoring soil conditions. Lance Cheung/USDA via Smith Collection/Gado/Getty Images

Farmers can save water with wireless technologies, but there are challenges – like transmitting data through mud

The Agricultural Internet of Things is making farming more efficient. An information technology expert describes some of the challenges of working with sensors and antennas underground.
The old village of Aceredo, submerged 30 years ago when a hydropower dam flooded the valley, emerged during a drought in northwestern Spain, in February 2022. (AP Photo/Emilio Morenatti)

IPCC report: Half the world is facing water scarcity, floods and dirty water — large investments are needed for effective solutions

Water is central to adapting to climate change, but very few of the strategies put in place to respond to water hazards or ensure its availability have been evaluated.
Groundwater is used for irrigation and drinking water, but those wells are rarely more than one kilometre deep. A huge volume of salty water exists as much as 10 kilometres below the Earth’s surface. (Shutterstock)

Groundwater — not ice sheets — is the largest source of water on land and most of it is ancient

Groundwater is the second-largest store of water on Earth. Governments and industry use groundwater reservoirs to store waste, but it may also have environmental functions that haven’t been revealed.
Some of North America’s groundwater is so old, it fell as rain before humans arrived here thousands of years ago. Maria Fuchs via Getty Images

Ancient groundwater: Why the water you’re drinking may be thousands of years old

As surface water diminishes in the Western US, people are drilling deeper wells – and tapping into older groundwater that can take thousands of years to replenish naturally.

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