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Artikel-artikel mengenai Aquifers

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Circular irrigation for growing hay and alfalfa near Corcoran, Calif. − a water-intensive system that relies on groundwater pumping. George Rose/Getty Images

Humans are depleting groundwater worldwide, but there are ways to replenish it

Rapid and accelerating groundwater level declines are widespread in dry climates where groundwater is used for irrigation. But some communities have found ways to turn things around.
In 2022, California built an emergency drought barrier across the West False River near Oakley to protect against saltwater intrusion. AP Photo/Terry Chea

What is seawater intrusion? A hydrogeologist explains the shifting balance between fresh and salt water at the coast

Saltwater intrusion is bad for human health, ecosystems, crops and infrastructure. Here’s how seawater can move inland, and why climate change is making this phenomenon more frequent and severe.
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.
An orchard near Kettleman City in California’s San Joaquin Valley on April 2, 2021. Frederic J. Brown/AFP via Getty Images

Water wells are at risk of going dry in the US and worldwide

The US has one of the highest groundwater use rates in the world. When wells run dry, households may opt to conserve water, find new sources or sell and move.
Aerial view of Lake Powell on the Colorado River along the Arizona-Utah border. AP Photo/John Antczak

Interstate water wars are heating up along with the climate

The Supreme Court recently dealt defeat to Florida in its 20-year legal battle with Georgia over river water. Other interstate water contests loom, but there are no sure winners in these lawsuits.
The future of Perth’s urban wetlands is in doubt. Orderinchaos/Wikimedia Commons

Is Perth really running out of water? Well, yes and no

Perth, unlike Cape Town, faces no prospect of its tapwater running out. But other problems lurk beneath the surface, as the city’s drying climate puts increasing pressure on irrigation and wetlands.
An Egyptian farmer tries to irrigate his land with water from a well. Reuters/Mohamed Abd El Ghany

A worsening water crisis in North Africa and the Middle East

At present, the Middle East and North African region contains 7% of the world’s population but only has access to 1.5% of its renewable freshwater supply through rainfall.
Despite the noble intentions behind charity wells, they may not be the best thing. Franco Volpato/Shutterstock

Africa’s aquifers aren’t being protected as they should

The digging of wells in Africa has often been thought of as the solution to helping rural women walking to get water, but they may cause more harm than good.
Water from coal seam gas mining would be treated at a reverse osmosis plant before being re-injected into the ground. CSIRO

Can water from coal seam gas be re-injected into the ground?

The Queensland government wants companies to use waste water from coal seam gas extraction for useful purposes such as recharging aquifers. New CSIRO research shows that, with careful monitoring, it can be done.
Coal seam gas is only one issue for managing one of Australia’s most important geological resources. AAP Image/Dean Lewins

Coal seam gas is just the latest round in an underground war

In a recent article on The Conversation, Queensland coal seam gas (CSG) researchers argued that the industry is progressing faster than the science, leading to concerns over fugitive emissions and impacts…

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