By the time you feel thirsty, your body is already dehydrated.
Thanh Mai Bui Duy/Flickr
First we feel thirsty and fatigued, and may develop a mild headache. This eventually gives way to grumpiness, and mental and physical decline.
Disinfecting municipal water systems is complex, but Flint made critical errors that led to the lead poisoning crisis.
Treating municipal water, particularly from rivers, is difficult technically and cash-strapped municipalities like Flint don't always know the latest science.
The University of Michigan-Flint puts experts from academia in the same room as Flint community members, an innovative model for educating the community and forming the public health response.
Up until the 1940s, as much as half of U.S. water piping from main lines was made of lead.
A wake-up call from Flint: the U.S. has made great gains in reducing lead exposure, but the country is still saddled with millions of miles of water-carrying lead pipes.
Silver Lake, Wasatch watershed, Utah.
With a future of droughts looming for the US West, Utah’s Wasatch watershed offers a good model that combines conservation with nature-based recreation.
Gullies inside a Martian crater.
Have we been jumping to conclusions about water on Mars?
Despite a decade of drought and declining rainfall in parts of Australia, there’s still plenty of water to go around.
Maroondah reservoir from www.shutterstock.com
The Millennium Drought ended more than five years ago, but several years of below-average rainfall and El Niño have brought drought back to many parts of Australia. Our latest report on water in Australia shows rainfall is continuing to decline in eastern Australia and increase in the north.
‘Not a goosebump between us.’
While the Paris climate talks focus on technical fixes, no one talks about how we're much more afraid of roughing it than ever before.
Low food miles: a farmers market in Pennsylvania.
Food is a big part of everyone's carbon footprint – about the same as electricity use. How can our diet make farming more planet-friendly?
Ruin of a second-century public toilet in Roman Ostia.
Fr Lawrence Lew, OP
Archaeological and textual detective work is filling in some information about how ancient Romans used and thought about their sewers thousands of years ago.
A lone cow stands next to a dried up river in South Africa.
The water crisis in South Africa could have been avoided through better planning.
Tens of millions of smallholder farmers across sub-Saharan Africa have a stake in improving the health of the soil their cattle graze on.
Africa’s soil crisis calls for quick and creative action. This includes deepening farmers' knowledge about soil microbes.
The disease can only occur when contaminated water goes up into the nose.
Amoebas are ancient bugs that predate multicellular organisms that often hide in water and mud.
Australia can balance energy, water and food needs with the environment.
Wind turbine image from www.shutterstock.com
We have all the tools to achieve economic growth and environmental sustainability - we just have to choose to use them.
The Murray River in 2007, at the height of the drought. Hopefully it will be more resilient next time around.
Scott Davis/Wikimedia Commons
As El Nino looms, the Murray-Darling is facing another drought. But after almost a decade of investment in water trading and other policies, its prospects are better this time around.
17 mile regulator - a computer controlled flume gate - on the East Goulburn Main Channel Water.
With El Niño upon us and the prospect of water scarcity ahead, how well positioned are we to make accurate and timely decisions about water resources?
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.
A disintergating asteroid caught in the gravitational pull of a white dwarf star: could this be the future fate of the Earth?
Mark A. Garlick
A study into a distant white dwarf could help us learn more about the future fate of the Earth – and it could be a violent one.
Photosynthesis is crucial to the ability of plants to convert sunlight into energy.
N i c o l a/Flickr
Distinguished Professor Graham Farquhar has received this year's Prime Minister's Prize for Science for his pioneering research into photosynthesis.
New surveys show Australians don’t mind if the water coming from their tap is recycled.
Tap image from www.shutterstock.com
Would you drink recycled water? New surveys suggest Australians concerned about water shortages are ready for alternative sources.