All particles that reach the atmosphere cause different chemical reactions. Particles come partly from natural sources such as volcanic eruptions and forest fires, and partly from pollution and emissions. Aerosol researcher ...
Earth Sciences
Oct 9, 2023
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5
The outer planets of our solar system, Uranus and Neptune, are water-rich gas giants. These planets have extreme pressures 2 million times the Earth's atmosphere. They also have interiors as hot as the surface of the sun. ...
Planetary Sciences
Oct 9, 2023
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88
An international team of scientists has discovered a huge spike in radiocarbon levels 14,300 years ago by analyzing ancient tree-rings found in the French Alps.
Astronomy
Oct 9, 2023
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401
When and how humans first settled in the Americas is a subject of considerable controversy. In the 20th century, archaeologists believed that humans reached the North American interior no earlier than around 14,000 years ...
Archaeology
Oct 8, 2023
1
229
When sea ice melts, polar bears must move onto land for several months without access to food. This fasting period is challenging for all bears, but particularly for polar bear mothers who are nursing cubs.
Plants & Animals
Oct 6, 2023
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10
The thunder of icebergs crashing into the turquoise sea of eastern Greenland is the sound of one of the planet's most important ecosystems teetering on the edge of collapse.
Environment
Oct 4, 2023
0
122
Globally, there is about one volcano erupting each week. Volcanic unrest kills an average of 500 people every year and costs the global economy roughly US$7 billion (£5.7 billion). With one in 20 people living somewhere ...
Earth Sciences
Oct 3, 2023
0
1
The long-term future looks bleak for Emperor penguins, but our new research shows some birds may be able to survive in certain conditions, depending on where they live, at least for the next few decades.
Plants & Animals
Oct 2, 2023
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2
Researchers in Japan have confirmed microplastics are present in clouds, where they are likely affecting the climate in ways that aren't yet fully understood.
Environment
Sep 30, 2023
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49
Glacier loss is a pressing concern worldwide, with ice melt impacting freshwater supplies, sea-level rise and ocean circulation. Often, global glacier models are employed to better understand the extent of this threat, such ...
Environment
Sep 28, 2023
0
1
