Banking water minimises the impact of evaporation and means that water can also be recycled from various sources.
Plants can find it tough to get all the nitrogen they need, especially from Australian soils. But summer storms can provide an added boost.
While making small volumes of pure water in a lab is possible, it’s not practical. The reaction is expensive, releases lots of energy, and can cause really massive explosions.
Public confidence in the institutions in charge of the Murray Darling Basin has plummeted – with good reason.
Most of us get thirsty when we need to drink more water. But there are other tell-tale signs that not all is well.
Water supply systems weren't designed to deal with altering weather patterns brought about by climate change. This needs to change.
Of Australia's capital cities, Perth has the saltiest tap water, while Melbourne, Hobart, Darwin and Canberra have the least salty. And while all are within guidelines, the variation is striking.
Many African countries tend to mismanage their groundwater resources.
Research shows that when Americans are aware of the scale of food waste, and how much energy and water are used to produce food, they support measures to reduce the problem.
Logging in the Thomson Catchment could reduce water supply by the equivalent of 600,000 people by 2050.
Leftover lactose from cheese production shows early promise as a treatment that can help soils retain water and nutrients, making them more resistant to drought.
Smart roads in Africa could help reduce the impact of flooding and other disasters that affect rural communities.
Bombarding people with scientific information has little effect. Something else is needed to jolt us out of our current climate trajectory.
Ghana needs to deal with the underlying causes of floods and prepare people for them.
After declining for nearly a decade, the number of hungry people in the world is growing again. Climate change, which is disrupting weather patterns that farmers rely on, is a major cause.
Energy-efficient water supply is a wicked problem – and we might have found a way to solve it.
If you have to devote hours a day to collecting water, you miss out on education, a social life and other human rights.
When people form local networks to take care of resources such as drinking water, they strengthen their communities. Technology can support these efforts and promote learning and innovation.
On the outskirts of Bangalore, families must piece together drinking water from communal supplies, intermittently available tap water, and "water ATMs".
Dairy cows are sensitive to heat, so farmers cool them down with sprinklers and fans. Researchers are designing better, more efficient systems to keep cows comfortable through hot California summers.