Groundwater is used extensively in arid regions like South Africa’s Karoo.
Groundwater is often seen as a resource that never runs out. This isn't true.
Water from an irrigation system sprays flowering cotton plants on the farm of Allen Entz in Hydro, Okla, Aug. 16, 2012.
AP Photo/Sue Ogrocki
The Ogalalla Aquifer is a vast underground lake that irrigates farms across the US Great Plains. It took thousands of years to fill, but human use could drain it in roughly a century.
The future of Perth’s urban wetlands is in doubt.
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.
Deep dive: water flows from a bore in Birdsville, Queensland.
Groundwater is out of sight, but it shouldn't be out of mind. As cities struggle to cope with drought, we should remember that our largest stocks of water are hidden deep underground.
An Egyptian farmer tries to irrigate his land with water from a well.
Reuters/Mohamed Abd El Ghany
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.
Drilling a groundwater well by hand, near Lahore, July 2017.
A_noina / Shutterstock
Millions of livelihoods depend on the Indus Basin aquifer.
So much water has gone into groundwater it has slowed rising seas.
Bore image from www.shutterstock.com
There's enough water under the ground to form a lake 100m deep over the earth.
Despite the noble intentions behind charity wells, they may not be the best thing.
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.
Rainwater + hard urban surfaces = lots of runoff.
Built-up urban environments transform the resource of rainwater into wasted runoff. Low Impact Development mimics nature to help get stormwater into the natural water system.
Water from coal seam gas mining would be treated at a reverse osmosis plant before being 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
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…
Queensland’s cuts to water red tape could leave outback bores high and dry.
On Wednesday, Queensland’s parliament passed water reform legislation that will make it easier to take and use water, particularly for large mining and agriculture projects. The state government also recently…
A study of 1,400 coastal aquifers in North America finds that most coastal aquifers are relatively unaffected by rising sea…
Understandably, farmers get worried when they think their water is under threat.
There are many good reasons why the general public, and in particular farmers, are concerned about coal seam gas (CSG) extraction. There are major gaps in our knowledge about the future impacts of CSG…
A new centrifuge is being used to preview the long-term effects of activities such as coal seam gas mining on groundwater…