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Archive for the ‘climatology’ category: Page 10

Aug 23, 2024

Increasing Environmental Stressors Decrease Ecosystem Resilience

Posted by in categories: climatology, sustainability

What influence do global environmental stressors have on the ability of an ecosystem to withstand these stresses and rebuild itself? This is what a recent study published in Nature Geoscience hopes to address as an international team of researchers investigated a correlation between environmental stressors and ecosystem resilience. This study comes as climate change continues to ravage the planet with more severe and frequent weather patterns, including increased temperatures and storms. This study holds the potential to help researchers, climate scientists, and the public better understand the short and long impacts of climate change on the environment and the steps that can be taken mitigate them.

“Terrestrial ecosystems are subject to a myriad of climate change and environmental degradation factors, including global warming, drought processes, atmospheric pollution, fires or overgrazing among many others. We know that these global change factors impact the ability of our ecosystems to provide services such as carbon sequestration or soil fertility that are key in the fight against climate change and in food production.” said Manuel Delgado Baquerizo, who leads the Biodiversity and Ecosystem Functioning Lab (BioFunLab) leader and is a co-author on the study.

For the study, the researchers conducted a global and elaborate study combining approximately 14,000 observations regarding ecosystems functions and biodiversity from a 15-year study with the goal of ascertaining an ecosystem’s ability to resist global environmental stressors, including those resulting from climate change. In the end, the team discovered a negative correlation between environmental stressors and an ecosystem’s resilience, meaning as these stressors increase the resilience of an ecosystem decreases. Additionally, they found the opposite regarding biodiversity, meaning its resilience increases to increasing global environmental stressors.

Aug 22, 2024

The Wow Signal Potentially Explained … and it’s Weird

Posted by in categories: climatology, space

An exploration of new work done at Arecibo regarding the infamous Wow! Signal of 1977 that seems to account for all aspects of the observed signal but turned out to be a very strange natural event that isn’t likely to repeat often that is analogous to a lightning flash in a hydrogen cloud in interstellar space.

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Aug 20, 2024

Lightning sparks the discovery of a new electromagnetic wave

Posted by in category: climatology

New electromagnetic wave discovery reshapes our understanding of the impact of lightning on Earth’s magnetosphere.

Aug 19, 2024

Scientists discover phenomenon impacting Earth’s radiation belts

Posted by in category: climatology

Two University of Alaska Fairbanks scientists have discovered a new type of “whistler,” an electromagnetic wave that carries a substantial amount of lightning energy to the Earth’s magnetosphere.

Aug 19, 2024

New statistical mechanics formula suggests urban street networks and building density shape severity of floods

Posted by in categories: climatology, engineering, physics

Cities around the globe are experiencing increased flooding due to the compounding effects of stronger storms in a warming climate and urban growth. New research from the University of California, Irvine suggests that urban form, specifically the building density and street network of a neighborhood, is also affecting the intensity of flooding.

For a paper published today in Nature Communications, researchers in UC Irvine’s Department of Civil and Environmental Engineering turned to statistical mechanics to generate a new formula allowing to more easily assess flood risks presented by land development changes.

Co-author Mohammad Javad Abdolhosseini Qomi, UC Irvine associate professor of civil and environmental engineering who holds a joint appointment in UC Irvine’s Department of Materials Science and Engineering, said that he and his colleagues were inspired by how physicists study intricate systems such as disordered porous solids, glasses and complex fluids to develop universal theories that can explain city-to-city variations in flood hazards.

Aug 17, 2024

Crashes, blackouts and climate tipping points: How can we tell when a system is close to the edge?

Posted by in category: climatology

According to the infamous myth, groups of lemmings sometimes run off cliffs to their collective doom. Imagine you are one of these rodents: On a sunny day you join your companions in a joyous climb up a mountain beneath clear skies, traipsing across grass and dirt and rock, glad to be among friends, until suddenly you plunge through the brisk air and all goes black.

Aug 16, 2024

Urgent Call to Protect Southern Ocean as Human Impact Grows

Posted by in categories: climatology, existential risks, sustainability

How can scientists protect biodiversity across the Earth while climate change continues to ravage the planet? This is what a recent study published in Conservation Biology hopes to address as an international team of researchers investigated how conservation efforts within the Southern Ocean should be addressed due to human activities (i.e., tourism, climate change, and fishing). This study holds the potential to help scientists, conservationists, and the public better understand the negative effects of human activities on the Earth’s biodiversity, specifically since the Southern Ocean is home to an abundance of species.

“Despite the planet being in the midst of a mass extinction, the Southern Ocean in Antarctica is one of the few places in the world that hasn’t had any known species go extinct,” said Sarah Becker, who is a PhD student in the Department of Environmental Studies at the University of Colorado Boulder (CU Boulder) and lead author of the study.

For the study, the researchers used the Key Biodiversity Area (KBA) standard—which used to identify sites of vital importance to preserving biodiversity—to examine species within the Southern Ocean. After analyzing tracking data for 13 Antarctic and sub-Antarctic seabirds and seals, the researchers found a total of 30 KBAs existed within the Southern Ocean, specifically sites used for migration, breeding, and foraging. This study improves upon previous research that identified KBAs on a macroscale, whereas this recent study focused on sites at the microscale. The researchers hope this study will help raise awareness for mitigating fishing activities in these areas along with developing improved conservation strategies, as well.

Aug 13, 2024

Transforming Construction with Nanotechnology

Posted by in categories: chemistry, climatology, habitats, nanotechnology, sustainability

Nanomaterials, with their distinctive physical and chemical properties, hold significant promise for revolutionizing the housing construction industry. By enabling the development of stronger, more durable, efficient, and sustainable structures, nanotechnology offers solutions to challenges such as climate change and global urbanization.

The use of nanomaterials in construction began in the mid-1980s with the advent of carbon-based structures. Since then, their application has become more widespread, driving innovations in the sector. Today, advances in nanotechnology are leading to the creation of increasingly sophisticated, selective, and efficient nanomaterials, broadening the scope of construction capabilities.

This study explored the application of various nanomaterials—titanium dioxide, carbon nanotubes (CNTs), nanosilica, nanocellulose, nanoalumina, and nanoclay—in residential construction. These materials were chosen for their potential to enhance the structural integrity, thermal performance, and overall functionality of building materials used in housing.

Aug 12, 2024

Probing Mars’ Interior Reveals Vast Underground Water Reservoir

Posted by in categories: climatology, solar power, space, sustainability

“Establishing that there is a big reservoir of liquid water provides some window into what the climate was like or could be like,” said Dr. Michael Manga.


While Mars is incapable of having liquid water on its surface, what about underground, and how much could there be? This is what a recent study published in the Proceedings of the National Academy of Sciences hopes to address as a team of researchers investigated how liquid water might be present beneath the Martian surface. This study holds the potential to help researchers not only better understand the current conditions on the Red Planet, but also if these same conditions could have led to life existing on the surface in the past.

For the study, the researchers analyzed seismic data obtained by NASA’s now-retired InSight lander, which landed on Mars in 2018 and sent back valuable data regarding the interior of Mars until the mission ended in 2022. This was after mission planners determined the amount of dust that had collected on the lander’s solar panels did not allow for sufficient solar energy to keep it functioning. However, despite being expired for two years, scientists continued to pour over vast amounts of data regarding the interior of Mars.

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Aug 12, 2024

Older Trees Show Increased Carbon Storage with Elevated CO2

Posted by in categories: climatology, sustainability

How can older trees help combat climate change? This is what a recent study published in Nature Climate Change hopes to address as an international team of researchers investigated changes in woody biomass in older trees that have been while exposed to free-air CO2 enrichment (FACE) resulting from climate change. This study holds the potential to help researchers, climate scientists, and the public better understand the steps that can be taken to decrease CO2 emissions and combat climate change worldwide.

For the study, the researchers, led by the University of Birmingham’s Institute of Forest Research (BIFoR), conducted a FACE experiment through a combination of canopy laser scanning and tree-ring analysis to examine the 180-year-old Quercus robur L. woodland in central England between 2021and 2022. The goal was ascertaining the effectiveness of older trees compared to younger trees regarding their consumption of CO2, also known as CO2 storage. In the end, the researchers found increased levels of CO2 compared to ambient conditions in 2021 and 2022, respectively, equivalent to 1.7 tons of dry matter per hectare per year.

“Our findings refute the notion that older, mature forests cannot respond to rising levels of atmospheric CO2, but how they respond will likely depend on the supply of nutrients from the soil,” said Dr. Richard Norby from the University of Birmingham, who is lead author of the study. “Evidence from BIFoR FACE of a significant increase in woody biomass production supports the role of mature, long-established, forests as natural climate solutions in the coming decades while society strives to reduce its dependency on carbon.”

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