Sand dunes play a team game
They communicate, which is why they don’t collide.
Sand dunes are able to “communicate” with each other to avoid colliding, according to new research. It may not be co...
Greenland Ice Sheet melting top and bottom
Warm water finding its way underneath, research shows.
Late last year studies revealed that the Greenland Ice Sheet is melting much faster than previously thought, and that...
Here’s what’s below an unstable glacier
Robot gathers information at the grounding line.
Scientists have taken a close-up look at the foundations of one of the most unstable glaciers in Antarctica. Using...
Bushfires release mercury stored in plants
The risk and impact are greatest in contaminated areas.
Climate change and bushfire may exacerbate recent mercury pollution and increase exposure to the poisonous neurotoxin...
River deltas are changing shape
Modelling reveals impact of human activities.
Deforestation and damming have altered the shape of river deltas across the globe, contributing to a net 54 square ki...
Earth’s oldest known impact structure
Geological dating at the 70-kilometre wide Yarrabubba crater.
Evidence that the 70-kilometre wide Yarrabubba crater in outback Western Australia may be the Earth’s oldest known me...
Planting trees can have its downside
Research reveals impact on river flow as forests age.
Reforestation is an important part of tackling climate change, but it seems we need to think carefully about where we...
Should we thin our forests?
It’s complex and controversial, but shouldn’t be ruled out.
Calls from industry and unions for increased thinning in forests to reduce bushfire risks have been met with concern ...
Oceans tell us about the end of the dinosaurs?
An asteroid did do the deed then volcanism shaped life in its aftermath.
Scientists studying ocean cores have found new clues as to whether it was indeed an asteroid strike that killed off t...
The Congo is deep, as well as long
And it’s a great place to study convergent evolution.
A few years ago, Melanie Stiassny, an ichthyologist at the American Museum of Natural History, plucked a pale, blind,...
Was Earth’s oxygenation a gradual process?
Modelling suggests a string of major events wasn’t necessary.
By Richard A LovettEarth’s oxygen comes from plants and other photosynthetic organisms. Scientists have long known th...
What it’s like beneath Antarctica's ice sheet
New high-precision map reveals all the bumps and hollows.
Glaciologists have released the most accurate portrait yet of the contours of the land beneath Antarctica's ice sheet...