Articles on Groundwater

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Water levels in Lake Corpus Christi, a key reservoir for the Texas city, are so low that docks extend over grassland, not lapping waves. Brandon Bell/Getty Images

Why Corpus Christi faces a looming water shortage, and what might help

Years of industrial expansion have boosted water demand, with no new sources coming online since 2016. Desalination and reclaiming sewage wastewater are among the current options.
A functioning water pump in Malawi. Courtesy Michael Caterina.

Handpumps bring water to rural African communities, but many are broken – study models how best to maintain them

Over 100,000 water handpumps in rural sub-Saharan Africa are broken, leaving millions without safe water. Regular maintenance is cheaper than repairs.
Romanskolk, a farm near Brandvlei in the study area, showing what drought looks like. Courtesy Danita Hohne

A water solution for drought‑prone South Africa: we designed systems to replenish aquifers simply and cheaply in five towns

South Africa’s driest regions rely on groundwater, which dries up as the climate warms. Replenishing aquifers with excess rainfall may be a solution.
Iranians pray for rain in Tehran on Nov. 14, 2025. The city is experiencing its worst drought in decades. Fatemeh Bahrami/Anadolu via Getty Images

Iran’s president calls for moving its drought‑stricken capital amid a worsening water crisis – how Tehran got into water bankruptcy

Iran’s sprawling cities and irrigated agriculture, along with tight market controls, have left the country vulnerable to drought. There are steps that would help.
View of the Rio Grande flowing through Ciudad Juarez, Mexico, photographed from the Paso Del Norte International Bridge. Paul Rarje/AFP via Getty Images

Water is the other US‑Mexico border crisis, and the supply crunch is getting worse

Immigration isn’t the only hot-button issue along the US-Mexico border. There’s also a growing water shortage that’s affecting farmers, businesses and cities on both sides.
View of Papineau Lake in the Kenauk forest, in the Outaouais region of Quebec. (Water and Land Conservation Research Chair)

Groundwater’s invisible role in sustaining lakes

In Canada, groundwater is generally abundant and lakes are ubiquitous. But the exchanges between groundwater and lakes are complex and often invisible.
Highway 4 crosses Lake Diefenbaker at Saskatchewan Landing Provincial Park. Lake Diefenbaker is a part of the South Saskatchewan river basin which faces unprecedented levels of reduced water flows in 2024. THE CANADIAN PRESS/Michael Bell

Water woes in southern Alberta could spell disaster for aquatic ecosystems, and the people who rely on them

Declining precipitation, climate change and governance failures will drive water flow scarcity in 2024 with serious implications across Western Canada.
Water from the Mackenzie River, seen from a satellite, carries silt and nutrients from land to the Arctic Ocean. Jesse Allen/NASA Earth Observatory

Arctic rivers face big changes with a warming climate, permafrost thaw and an accelerating water cycle − the effects will have global consequences

A new study shows how thawing permafrost and intensifying storms will change how water moves into and through Arctic rivers.

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