Search results for hydrosphere

Environment May 31, 2023

Earth's energy budget is not in balance. Should we be concerned?

A recent report from the World Meteorological Organization about the state of the climate indicates that the global mean temperature in 2022 was 1.15°C above the 1850-1900 (preindustrial reference period) average. Moreover, ...

Environment Mar 13, 2023

Confirmed: Global floods, droughts worsening with warming

The intensity of extreme drought and rainfall has "sharply" increased over the past 20 years, according to a study published Monday in the journal Nature Water. These aren't merely tough weather events, they are leading to ...

Planetary Sciences Mar 10, 2023

Venus could have had oceans long after life started on Earth

Today Venus has a dry, oxygen-poor atmosphere. But recent studies have proposed that the early planet may have had liquid water and reflective clouds that could have sustained habitable conditions. Researchers at the University ...

Earth Sciences Feb 19, 2023

Was Earth already heating up, or did global warming reverse a long-term cooling trend?

Over the past century, the Earth's average temperature has swiftly increased by about 1 degree Celsius (1.8 degrees Fahrenheit). The evidence is hard to dispute. It comes from thermometers and other sensors around the world.

Cell & Microbiology Jan 18, 2023

New study decodes one of the world's fastest cell movements

Heliozoan axopodia are important for their motility. However, the underlying mechanism of their axopodial contraction has remained ambiguous. Recently, researchers from the Okayama University reported that microtubules are ...

Astrobiology Dec 15, 2022

Could life survive on frigid exo-Earths? Maybe under ice sheets

Our understanding of habitability relies entirely on the availability of liquid water. All life on Earth needs it, and there's every indication that life elsewhere needs it, too.

Ecology Nov 7, 2022

Study unveils the compositions and origins of global airborne bacteria on Earth

Microbiomes, microorganisms that populate specific environments, are known to include both beneficial and harmful bacterial species. Understanding how destructive microbiomes originate in changing environments and their effects ...

Astrobiology Sep 21, 2022

New clues about early atmosphere on Mars suggest a wet planet capable of supporting life

New research published in Earth and Planetary Science Letters suggests that Mars was born wet, with a dense atmosphere allowing warm-to-hot oceans for millions of years. To reach this conclusion, researchers developed the ...

Earth Sciences Jul 6, 2022

Climate evolution in the Southeast Indian Ocean during the Miocene

The Miocene, 23 to 5 million years ago, was an important period for the formation of the Antarctic ice sheets (AIS). The mid-latitudes in the southern hemisphere are the area where the westerlies prevailed and the climate ...

Planetary Sciences Jun 22, 2022

Modeling electrolyte transport in water-rich exoplanets

Oceans on water-rich exoplanets may be enriched with electrolytes, including salts such as sodium chloride, suggests a modeling study published in Nature Communications. The research proposes electrolytes can be transported ...

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