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Categories: Environmental: Wildfires, Geoscience: Geography

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Environmental: General Environmental: Water Environmental: Wildfires Geoscience: Earth Science Geoscience: Environmental Issues
Published

New model provides improved air-quality predictions in fire-prone areas      (via sciencedaily.com) 

Globally, wildfires are becoming more frequent and destructive, generating a significant amount of smoke that can be transported thousands of miles, driving the need for more accurate air pollution forecasts. Researchers have now developed a deep learning model that provides improved predictions of air quality in wildfire-prone areas and can differentiate between wildfires and non-wildfires.

Environmental: Wildfires Geoscience: Severe Weather
Published

A mechanistic and probabilistic method for predicting wildfires      (via sciencedaily.com) 

In the event of dry weather and high winds, power system-ignited incidents are more likely to develop into wildfires. The risk is greater if vegetation is nearby. A new study provides the methodology for predicting at what point during a high wind storm, powerline ignition is likely.

Biology: Marine Ecology: Nature Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography Geoscience: Oceanography
Published

Researchers find decaying biomass in Arctic rivers fuels more carbon export than previously thought      (via sciencedaily.com) 

A new study found that plants and small organisms in Arctic rivers could be responsible for more than half the particulate organic matter flowing to the Arctic Ocean. That's a significantly greater proportion than previously estimated, and it has implications for how much carbon gets sequestered in the ocean and how much moves into the atmosphere.

Biology: Marine Ecology: Animals Ecology: Nature Ecology: Sea Life Environmental: Ecosystems Environmental: Water Geoscience: Geography Geoscience: Oceanography
Published

Minke whales are as small as a lunge-feeding baleen whale can be      (via sciencedaily.com) 

A new study of Antarctic minke whales reveals a minimum size limit for whales employing the highly efficient 'lunge-feeding' strategy that enabled the blue whale to become the largest animal on Earth.

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

Arctic climate modelling too conservative      (via sciencedaily.com) 

Climate models used by the UN's IPCC and others to project climate change are not accurately reflecting what the Arctic's future will be, experts say.

Biology: Marine Chemistry: General Ecology: Nature Ecology: Sea Life Environmental: Biodiversity Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography Geoscience: Oceanography
Published

Assessing the potential risks of ocean-based climate intervention technologies on deep-sea ecosystems      (via sciencedaily.com) 

An international team of experts convened remotely as part of the Deep Ocean Stewardship Initiative's Climate Working Group to consider the deep-sea impacts of ocean-based climate intervention (OBCI). A research team has analyzed the proposed approaches to assess their potential impacts on deep-sea ecosystems and biodiversity. Their findings raise substantial concern on the potential impacts of these technologies on deep-sea ecosystems and call for the need for an integrated research effort to carefully assess the cost and benefits of each intervention.

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

Diverse approach key to carbon removal      (via sciencedaily.com)     Original source 

Researchers find that 10 gigatons of carbon dioxide may need to be pulled from Earth's atmosphere and oceans annually to limit global warming to 1.5 degrees. A diverse suite of carbon dioxide removal methods will be key.

Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography Geoscience: Geology Geoscience: Severe Weather
Published

The world's atmospheric rivers now have an intensity ranking like hurricanes      (via sciencedaily.com) 

Atmospheric rivers, which are long, narrow bands of water vapor, are becoming more intense and frequent with climate change. A new study demonstrates that a recently developed scale for atmospheric river intensity (akin to the hurricane scale) can be used to rank atmospheric rivers and identify hotspots of the most intense atmospheric rivers not only along the U.S. West Coast but also worldwide.

Environmental: General Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography Geoscience: Oceanography Space: Exploration Space: General Space: The Solar System
Published

Scientists call for global push to eliminate space junk      (via sciencedaily.com) 

As almost 200 countries agree a legally-binding treaty to protect the High Seas, a collaboration of experts in ocean plastic pollution and satellite technology has urged world leaders to learn lessons from the management of the High Seas and act now to protect Earth's orbit.

Geoscience: Environmental Issues Geoscience: Geography Geoscience: Severe Weather Space: General
Published

Underused satellite, radar data may improve thunderstorm forecasts      (via sciencedaily.com) 

Tens of thousands of thunderstorms may rumble around the world each day, but accurately predicting the time and location where they will form remains a grand challenge of computer weather modeling. A new technique combining underused satellite and radar data in weather models may improve these predictions, according to a team of scientists.

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

Arctic river channels changing due to climate change      (via sciencedaily.com)     Original source 

A team of international researchers have found that the rivers in Arctic Canada and Alaska are not behaving as expected in response to the warming climate. The study focused on large rivers in the region and their movement through permafrost terrain. Their findings highlight the impact of atmospheric warming on these vital waterways.

Environmental: Ecosystems Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography Geoscience: Geology Geoscience: Oceanography
Published

Life in the smoke of underwater volcanoes      (via sciencedaily.com) 

Disconnected from the energy of the sun, the permanently ice-covered Arctic deep sea receives miniscule amounts of organic matter that sustains life. Bacteria which can harvest the energy released from submarine hydrothermal sources could thus have an advantage. Scientists found bacteria uniquely adapted to this geo-energy floating in deep-sea waters. They describe the role of these bacteria for biogeochemical cycling in the ocean.

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

How climate change threatens Asia's water tower      (via sciencedaily.com)     Original source 

Tibet is known as the 'Water Tower of Asia,' providing water to about 2 billion people and supporting critical ecosystems in High Mountain Asia and the Tibetan Plateau, where many of the largest Asian river systems originate. This region is also one of the areas most vulnerable to the compounding effects of climate change and human activities. Researchers are identifying policy changes that need to happen now to prepare for the future impacts projected by climate models.

Geoscience: Geography
Published

Can children map read at the age of four?      (via sciencedaily.com)     Original source 

Researchers have found that children start to develop the basic skills that underlie map reading from the age of just four! The study involved 175 two to five-year-olds. It reveals that four-year-olds become able to use a scale model to find things in the real world.

Ecology: Endangered Species Environmental: General Geoscience: Environmental Issues Geoscience: Geography
Published

Anthropogenic climate change poses systemic risk to coffee cultivation      (via sciencedaily.com) 

Coffee is important to the economies of coffee producing regions. A new study suggests that climate change may significantly affect land where coffee is cultivated.

Biology: Marine Ecology: Sea Life Environmental: Water Geoscience: Environmental Issues Geoscience: Geography Geoscience: Oceanography
Published

Unprecedented increase in ocean plastic since 2005 revealed by four decades of global analysis      (via sciencedaily.com) 

A global dataset of ocean plastic pollution between 1979 and 2019 reveals a rapid and unprecedented increase in ocean plastics since 2005, according to a new study.

Environmental: Wildfires Geoscience: Environmental Issues Geoscience: Geochemistry Geoscience: Geography
Published

Smoke particles from wildfires can erode the ozone layer      (via sciencedaily.com) 

A new study finds that smoke particles in the stratosphere can trigger chemical reactions that erode the ozone layer -- and that smoke particles from Australian wildfires widened the ozone hole by 10 percent in 2020.

Ecology: General Ecology: Invasive Species Ecology: Nature Ecology: Research Ecology: Trees Environmental: Ecosystems Environmental: Wildfires Geoscience: Environmental Issues
Published

To help dry forests, fire needs to be just the right intensity, and happen more than once      (via sciencedaily.com) 

Research into the ability of a wildfire to improve the health of a forest uncovered a Goldilocks effect -- unless a blaze falls in a narrow severity range, neither too hot nor too cold, it isn't very good at helping forest landscapes return to their historical, more fire-tolerant conditions.

Biology: Zoology Geoscience: Environmental Issues Geoscience: Geography
Published

Grassroots data vital for reducing deadly bird-window strikes      (via sciencedaily.com) 

Much of the progress made in understanding the scope of bird deaths from building and window collisions has come as the result of citizen science, according to a newly published study. But the study also concludes that such grassroots efforts need more buy-in from government and industry, and better funding so they can keep a foot on the gas in their efforts to reduce bird-window collisions.

Environmental: Water Geoscience: Environmental Issues Geoscience: Geography
Published

Pioneering study shows flood risks can still be considerably reduced if all global promises to cut carbon emissions are kept      (via sciencedaily.com) 

Annual damage caused by flooding in the UK could increase by more than a fifth over the next century due to climate change unless all international pledges to reduce carbon emissions are met, according to new research.