Satellites hundreds of miles overheard are helping scientists to predict drought, track floods and see how climate change is changing access to water resources.
There are benefits and downsides to damming rivers.
The effects of climate change above ground are well known, but what's happening to underground aquifers which supply most of the world's fresh water?
Could hairdressers hold the key to tackling climate change?
Awe-filled learning unfolds as a kindergarten class, accompanied by educators, investigates snow and water with tools, toboggans and more.
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.