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Categories: Geoscience: Geography, Space: The Solar System

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Ecology: General Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography Geoscience: Oceanography
Published

New research shows how pollutants from aerosols and river run-off are changing the marine phosphorus cycle in coastal seas      (via sciencedaily.com)     Original source 

New research sheds light on how pollutants from aerosols and river run-off are impacting coastal seas. The research identified an 'Anthropogenic Nitrogen Pump' which changes the phosphorus cycle and therefore likely coastal biodiversity and associated ecosystem services.

Chemistry: General Chemistry: Inorganic Chemistry Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography Geoscience: Oceanography
Published

Some plastic straws degrade quicker than others      (via sciencedaily.com)     Original source 

Not all plastics are created the same, and some last longer in the ocean than others. Scientists have been working for years to quantify the environmental lifetimes of a wide range of plastic goods to see which have the shortest and longest lifespans in the ocean. To determine what plastics persist in the ocean, the team tests different products in large tanks that recreate the natural ocean environment.

Offbeat: General Offbeat: Space Space: Astronomy Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

Researchers spying for signs of life among exoplanet atmospheres      (via sciencedaily.com)     Original source 

The next generation of advanced telescopes could sharpen the hunt for potential extraterrestrial life by closely scrutinizing the atmospheres of nearby exoplanets, new research suggests.

Ecology: General Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography
Published

Rising sea levels could lead to more methane emitted from wetlands      (via sciencedaily.com)     Original source 

A Bay Area wetlands ecosystem that was expected to serve as a carbon sink is emitting surprisingly high levels of methane, a potent greenhouse gas. The study suggests factors governing carbon cycles in these habitats are even more complex than we thought.

Biology: Cell Biology Biology: Microbiology Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: The Solar System
Published

Cosmic building blocks of life discovered through the electron microscope      (via sciencedaily.com)     Original source 

Meteorites are fragments of asteroids which find their way to Earth as shooting stars and provide information on the origins of our solar system. A team of researchers has examined the so-called Winchcombe meteorite and demonstrated the existence in it of nitrogen compounds such as amino acids and heterocyclic hydrocarbons -- without applying any chemical treatment and by using a new type of detector design.

Offbeat: General Offbeat: Space Space: Exploration Space: General Space: The Solar System
Published

Confirmation of ancient lake on Mars builds excitement for Perseverance rover's samples      (via sciencedaily.com)     Original source 

Ground-penetrating radar on board NASA's Mars Perseverance rover has confirmed that the Jezero Crater, formed by an ancient meteor impact just north of the Martian equator, once harbored a vast lake and river delta. Over eons, sediment deposition and erosion within the crater shaped the geologic formations visible on the surface today. The discovery of lake sediments reinforces the hope that traces of life might be found in soil and rock samples collected by Perseverance.

Ecology: General Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Geography Geoscience: Oceanography
Published

How waves and mixing drive coastal upwelling systems      (via sciencedaily.com)     Original source 

Large coastal upwelling systems along the eastern margins of the Atlantic and Pacific Oceans are among the most biologically productive and biodiverse regions of the world's oceans. Typically, the strength and timing of upwelling in such systems are linked to the prevailing winds. Interestingly, in some tropical regions, high levels of productivity occur even when the upwelling favorable winds are weak.

Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

Astronomers unravel mysteries of planet formation and evolution in distant planetary system      (via sciencedaily.com)     Original source 

TOI-1136, a dwarf star located more than 270 light years from Earth, is host to six confirmed exoplanets and a seventh as yet unconfirmed candidate. The system has provided a rich source of information on planet formation and evolution in a young solar system. Researchers used a variety of tools to compile radial velocity and transit timing variation readings to derive highly precise measurements of the exoplants' masses, orbital information and atmospheres.

Environmental: Biodiversity Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography
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Achieving sustainable urban growth on a global scale      (via sciencedaily.com)     Original source 

An international group of leading scientists call for an urgent change in the governance of urban expansion as the world's cities continue to grow at unprecedented rates.

Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography Geoscience: Oceanography Geoscience: Severe Weather
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Global warming has a bigger effect on compact, fast-moving typhoons      (via sciencedaily.com)     Original source 

A group has found that larger, slow-moving typhoons are more likely to be resilient to the effects of global warming. However, more compact, fast-moving storms are more likely to be sensitive. These findings suggest an improved method for projecting the strength of typhoons under global warming conditions.

Environmental: Ecosystems Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography
Published

War in Ukraine severely limits ability to track Arctic climate change      (via sciencedaily.com)     Original source 

Scientists no longer have direct access to data from Russian Arctic research stations. Without this data, our view of climate changes in the region is increasingly biased, new research shows.

Environmental: Water Geoscience: Environmental Issues Geoscience: Geography Geoscience: Severe Weather
Published

Paper provides a clearer picture of severe hydro hazards      (via sciencedaily.com)     Original source 

A new study now provides a global examination of drought-pluvial volatility -- or the tendency to shift from one weather extreme to another.

Environmental: General Geoscience: Environmental Issues Geoscience: Geography
Published

A large percentage of European plastic sent to Vietnam ends up in nature      (via sciencedaily.com)     Original source 

Despite strict EU regulations on plastic recycling, there is little oversight on plastic waste shipped from the EU to Vietnam. A large percentage of the exported European plastic cannot be recycled and gets dumped in nature, according to recent research.

Offbeat: General Offbeat: Space Space: Exploration Space: General Space: The Solar System
Published

Atmospheric pressure changes could be driving Mars' elusive methane pulses      (via sciencedaily.com)     Original source 

New research shows that atmospheric pressure fluctuations that pull gases up from underground could be responsible for releasing subsurface methane into Mars' atmosphere; knowing when and where to look for methane can help the Curiosity rover search for signs of life.

Biology: General Biology: Marine Biology: Zoology Ecology: Sea Life Environmental: Ecosystems Geoscience: Geography Geoscience: Oceanography
Published

Marine heat waves trigger shift in hatch dates and early growth of Pacific cod      (via sciencedaily.com)     Original source 

Marine heat waves appear to trigger earlier reproduction, high mortality in early life stages and fewer surviving juvenile Pacific cod in the Gulf of Alaska, a new study shows. These changes in the hatch cycle and early growth patterns persisted in years following the marine heat waves, which could have implications for the future of Gulf of Alaska Pacific cod, an economically and culturally significant species.

Geoscience: Earth Science Geoscience: Geochemistry Geoscience: Geology Space: Exploration Space: General Space: The Solar System
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Records of cometary dust hitting the asteroid Ryugu      (via sciencedaily.com)     Original source 

The Hayabusa2 mission that collected samples from the asteroid Ryugu has provided a treasure trove of insights into our solar system. After analyzing samples further, a team of researchers have unearthed evidence that cometary organic matter was transported from space to the near-Earth region.

Biology: Biochemistry Biology: Zoology Ecology: Animals Environmental: Ecosystems Environmental: General Geoscience: Environmental Issues Geoscience: Geography
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Gulls swap natural for urban habitats, machine-learning study finds      (via sciencedaily.com)     Original source 

The study is the first of its kind to compile a three-year dataset using a citizen science-based, opportunistic research method to include a large sample of gulls and other sub-Arctic birds in urban Alaska. The study provides a current snapshot of the habitat shift to an urban landscape.

Biology: General Ecology: Extinction Ecology: General Ecology: Invasive Species Ecology: Nature Ecology: Research Ecology: Trees Environmental: Biodiversity Environmental: Ecosystems Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography
Published

A new perspective on the temperature inside tropical forests      (via sciencedaily.com)     Original source 

New worldwide maps of temperatures inside tropical forests show that global warming affect different way in different parts of the forests. Undergrowth level temperature of the tropical forests can be even 4 degrees less than average temperature of the area.

Biology: Biochemistry Ecology: Nature Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography Geoscience: Geology
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Planetary Commons: Fostering global cooperation to safeguard critical Earth system functions      (via sciencedaily.com)     Original source 

Tipping elements of the Earth system should be considered global commons, researchers argue. Global commons cannot -- as they currently do -- only include the parts of the planet outside of national borders, like the high seas or Antarctica. They must also include all the environmental systems that regulate the functioning and state of the planet, namely all systems on Earth we all depend on, irrespective on where in the world we live. This calls for a new level of transnational cooperation, leading experts in legal, social and Earth system sciences say. To limit risks for human societies and secure critical Earth system functions they propose a new framework of planetary commons to guide governance of the planet.