Study investigates power generation from the meeting of river water and seawater
Where the river meets the sea, there is the potential to harness a significant amount of renewable energy, according to a team of mechanical engineers at MIT.
New, high-resolution global ocean circulation models identify trigger for Earth's last big freeze
For more than 30 years, climate scientists have debated whether flood waters from melting of the enormous Laurentide Ice Sheet, which ushered in the last major cold episode on Earth about 12,900 years ago, ...
Unexpected allies help bacteria clean uranium from groundwater
(Phys.org) —Since 2009, SLAC scientist John Bargar has led a team using synchrotron-based X-ray techniques to study bacteria that help clean uranium from groundwater in a process called bioremediation. ...
New entropy battery pulls energy from difference in salinity between fresh water and seawater
Fresh water from rivers and rain makes hurricanes, typhoons, tropical cyclones 50 percent more intense
An analysis of a decade's worth of tropical cyclones shows that when hurricanes blow over ocean regions swamped by fresh water, the conditions can unexpectedly intensify the storm. Although the probability ...
Saltwater boosts microbial electrolysis cells to cleanly produce hydrogen
A grain of salt or two may be all that microbial electrolysis cells need to produce hydrogen from wastewater or organic byproducts, without adding carbon dioxide to the atmosphere or using grid electricity, ...
New gadget for water purification: a 'nano tea bag'
Crocodiles ride ocean currents to travel the high seas
University of Queensland ecologists have unlocked the mystery of how salt-water crocodiles cross large stretches of the sea despite being poor swimmers - they like to surf.
New study argues against conclusion that bacteria consumed Deepwater Horizon methane
A technical comment published in the current (May 27) edition of the journal Science casts doubt on a widely publicized study that concluded that a bacterial bloom in the Gulf of Mexico consumed the methane discharged from t ...
Nitrogen fertilizer remains in soils and leaks towards groundwater for decades
Nitrogen fertilizer applied to crops lingers in the soil and leaks out as nitrate for decades towards groundwater – "much longer than previously thought," scientists in France and at the University of Calgary ...
Report casts world's rivers in 'crisis state'
(PhysOrg.com) -- The world's rivers, the single largest renewable water resource for humans and a crucible of aquatic biodiversity, are in a crisis of ominous proportions, according to a new global analysis.
Climate change will threaten fish by drying out Southwest US streams, research predicts
Fish species native to a major Arizona watershed may lose access to important segments of their habitat by 2050 as surface water flow is reduced by the effects of climate warming, new research suggests.
Hydrologists find Mississippi River network's buffering system for nitrates is overwhelmed
A new method of measuring the interaction of surface water and groundwater along the length of the Mississippi River network adds fresh evidence that the network's natural ability to chemically filter out ...
'Shocking' underground water loss in US drought
A major drought across the western United States has sapped underground water resources, posing a greater threat to the water supply than previously understood, scientists said Thursday.