Thanks to their consumption of invertebrates, Melbourne platypus likely receive half the recommended human dose of anti-depressants every day.
Pharmaceuticals were found in every invertebrate sampled from six Melbourne streams - including a waterway in a national park.
Volunteers prepare to take flow measurements on Muddy Creek.
Centre County Pennsylvania Senior Environmental Corps
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.
A street sign sticks up from floodwaters after Hurricane Florence in Nichols, South Carolina, September 21, 2018.
AP Photo/Gerald Herbert
Hurricanes frequently move inland in the southeast US, causing widespread river flooding, but emergency plans focus on protecting people in coastal communities.
A river in Van Diemen’s Land, charted during Nicolas Baudin’s 1802 journey.
National Library of Australia
Today, many Australian urbanites see rivers as little more than picturesque places for a paddle. But in the colonial era, rivers served as highways, drinking sources, sewers, and routes to discovery.
Flooding in Kinston, North Carolina during Tropical Storm Florence, September 14, 2018.
NC National Guard
Widespread flooding in North Carolina from Hurricane Florence shows the need for better advance planning in inland areas of the south and mid-Atlantic, especially near rivers.
Farm near Seven Springs, North Carolina, surrounded by water on Oct. 25, 1999, nearly six weeks after Hurricane Floyd.
AP Photo/Karen Tam
Hurricanes in the southern US have caused widespread damage inland in recent decades, mainly through river flooding. But evacuations and stormproofing focus almost entirely on keeping people safe on the coasts.
The Akaki river runs through central Addis Ababa.
Planning for rivers is one thing, but implementation is another as urbanisation and population growth increases.
A river dike on the Rio Nil near El Asintal, Guatemala.
(Consejo de Comunidades en Defensa del Ambiente del Municipio de El Asintal)
Increased use of renewable energies could help curb climate change, but the water required for their production has dispossessed rural Guatemalans.
Bloede Dam (ca. 2016) near Ilchester, Maryland.
When a dam comes down this fall, a team of scientists will be there to track the environmental changes.
Residents of Pandanad sit in a bus stop surrounded by flood waters, in Kerala, India.
Uncontrolled growth at the expense of the environment will severely exacerbate the impacts of climate change. As shown with tragic floods in India, our cities are not prepared for extreme events.
The results of phytoremediation are remarkable.
Birds don’t fly across wide Amazonian rivers like the Rio Negro.
Marcos Amend www.marcosamend.com (for use with this article only)
Rivers are natural boundaries for evolving populations. But scientists don't agree whether they create new species or just help maintain them. Research using birds' molecular clocks provides some answers.
The Fitzroy River in flood in 2017.
The new Martuwarra Fitzroy River Council aims to overcome a management problem faced by many traditional owners: the fact that major rivers flow through lands home to many different groups and languages.
Traditional owners on the Wimmera River, western Victoria, conducting Aboriginal waterways assessment.
Indigenous water rights have been overlooked for a very long time. A bipartisan agreement on the Murray Darling Basin Plan may change that.
intararit / shutterstock
How to cut down on toxic chemicals found in common household products.
The Murrumbidgee River is one of several sites in the Murray-Darling Basin where improvements are being detected.
The Murray-Darling Basin Plan has been politically fraught and mired in scandal. But environmental monitoring suggests that the health of the rivers is indeed improving – even if it will take decades.
Little Missouri River, North Dakota.
Recent research shows that US rivers are becoming saltier and more alkaline. Salt pollution threatens drinking water supplies and freshwater ecosystems, but there is no broad system for regulating it.
Western Canada faced record droughts and forest fires in 2017.
We think of Canada as a water-rich country, but we are not immune to water shortages or disasters. With some advance planning, Canada can avoid a water catastrophe.
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.
Rising waters: Paris, January 29, 2018.
It was the Seine’s rise and fall, in response to heavy rain, that inspired our current understanding of river systems.