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A new method for dating ancient earthquakes

Constraining the history of earthquakes produced by bedrock fracturing is important for predicting seismic activity and plate tectonic evolution. In a new study published in the Nature journal Scientific Reports Jan 17, 2020, ...

Teens feel the heat of climate change

In 2017, when the drought in Cape Town was at its worst in over a century, aid organisation Gift of the Givers made an urgent call to South Africans to help farmers; suicide rates, amongst both small- and large-scale farmers, ...

Battling longer, more intense fire seasons

Fires in Australia have been burning for months. At least 28 people and hundreds of thousands of animals have died, and more than 15 million acres have been destroyed as firefighters work to squelch the blaze. Penn doctoral ...

The greenbacks in mobile phone mines

No-one who is economically active can afford to go without at least a mobile phone, and at the pace that electronic equipment is re-invented, it's only a matter of time before your 'latest' iPhone 11 ends up on a dump site.

The burning issue of population control

The increasing human population is putting large amounts of pressure on our natural resources and is contributing to climate change, leading many people to call for increased population control—especially for poorer communities. ...

Why action on climate change gets stuck and what to do about it

Work crews descended on 12 commuter parking lots in Toronto in late November 2018, and headed to the electric vehicle (EV) charging stations. Their work came on the heels of an IPCC report that warned of dire environmental, ...

Expert discusses the prospects of climate engineering

Climate engineering may offer a last-ditch technological solution to catastrophic climate change, but who makes the decisions on which solutions to implement, and who the beneficiaries will be? Once we start fiddling with ...

What's in the smoke given off by the Australian wildfires?

Wildfires such as the ones that have been burning across Australia for months, pose different threats to the firefighters battling them. And, because the safety equipment used by woodland firefighters is far less regulated ...

Air France-KLM chief warns carbon taxes could backfire

Air France-KLM chief executive Ben Smith said Friday that imposing carbon taxes on ticket prices could prove counterproductive, hindering efforts by airlines to buy more fuel-efficient planes that could significantly reduce ...

The war on waste pickers

The man in the tattered shirt, biceps bulging as he pulls an enormous bag of waste behind him on a trolley. The blaring horns as cars slide by, annoyed at the intrusion in their lane. The furtive WhatsApp messages on community ...

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Plants & Animals
Male sparrows are less intimidated by the songs of aging rivals
Ingestible medical devices can be broken down with light
XMM-Newton discovers scorching gas in Milky Way's halo
Human-caused biodiversity decline started millions of years ago
Plants & Animals
Climate may play a bigger role than deforestation in rainforest biodiversity
Condensed Matter
Walking with atoms—chemical bond making and breaking recorded in action
Plants & Animals
What is an endangered species?
Here and gone: Outbound comets are likely of extra-solar origin
Soft Matter
Spider-Man-style robotic graspers defy gravity
Materials Science
Material developed which is heat-insulating and heat-conducting at the same time
Materials Science
Newly developed screening processes will accelerate carbon capture research
Space Exploration
Scientists measure the evolving energy of a solar flare's explosive first minutes
Materials Science
Not all of nature's layered structures are tough as animal shells and antlers, study finds
Archaeology & Fossils
Using machine learning to fine-tune views of the ancient past
Plants & Animals
Mysterious little red jellies: A case of mistaken identity
Materials Science
Using waste carbon dioxide to separate metals from ores
Quantum Physics
How sensitive can a quantum detector be?
General Physics
How biology creates networks that are cheap, robust, and efficient
Economics & Business
Small economic gambles are insignificant when large background uncertainty is considered
Cell & Microbiology
Surveying all the proteins on a neuron's surface