Category: Earth
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‘Maintain Asian forest diversity to avoid climate change impact,’ suggests new study
Credit: Dr Rebecca Hamilton/The University of Sydney A team of international scientists, led by Dr. Rebecca Hamilton at the University of Sydney, has found that rather than dry savannah in South East Asia dominating during the Last Glacial Maximum more than 19,000 years ago, there was a mosaic of diverse closed and open forest types,…
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Scientists Have Determined the Cause of Lethal Climate Change That Occurred Millions of Years Ago
Scientists have linked mass extinctions and climate change over the past 260 million years to massive volcanic eruptions and Earth’s astronomical cycles. This research, emphasizing the role of CO2 emissions in climate change, reveals an intricate connection between Earth’s geology and its position in space, distinct from modern, human-caused climate change. New research reveals that…
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“Dangerously Misleading” – Scientists Using Flawed Strategy in Predicting Species Responses to Climate Change
New research reveals that the space-for-time substitution method, used to predict species responses to climate change, inaccurately forecasts the impact of warming on the ponderosa pine. This finding suggests that the method may not be reliable in predicting the future responses of species to changing climates. Credit: SciTechDaily.com A new study involving University of Arizona…
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The Alarming Migration of Natural Gas Under Permafrost
Scientists have discovered that methane trapped under Svalbard’s permafrost can escape, risking a warming cycle. Frequent methane accumulations found in wellbore studies highlight the potential for increased global warming as the permafrost thaws. Credit: SciTechDaily.com Scientists say vast quantities of methane may be trapped beneath the permafrost, and it could escape if it thaws. Studies…
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The Key to Efficient Carbon Capture?
In a proposed carbon-capture method, magnesium oxide crystals on the ground bind to carbon dioxide molecules from the surrounding air, triggering the formation of magnesium carbonate. The magnesium carbonate is then heated to convert it back to magnesium oxide and release the carbon dioxide for placement underground, or sequestration. Credit: Adam Malin/ORNL, U.S. Dept. of…
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A Vivid Space Perspective: Nueva Vizcaya, Philippines
This Copernicus Sentinel-2 image showcases Nueva Vizcaya Province in the Philippines, highlighting its agricultural landscape and urban areas through a false-color composite. In the image, different seasons are represented with varying colors, revealing intricate details about crop growth stages, waterlogged fields for rice production, and urbanization. Credit: Contains modified Copernicus Sentinel data (2022-23), processed by…
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Mapping magma chambers under the Hunga volcano before and after the 2022 eruption
Pre-, post-, and coeruptive datasets. (A and B) Marine gravity anomaly derived from satellite altimetry [V31.1 and V32.1, respectively]. Subaerial island outlines in gray. (C) Change in marine gravity anomaly between (A) and (B). (D and E) Vertical gravity gradient (VGG) data from satellite altimetry [V31.1 and V.32, respectively]. (F) Change in VGG between (D)…
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Can Aerosol Injection Save the Ice?
A study by Indiana University suggests that scattering sunlight-reflecting particles in the atmosphere could slow down the melting of Antarctic ice. This approach, known as stratospheric aerosol injection, aims to mitigate the risks of rising sea levels due to climate change. Credit: SciTechDaily.com Climate Engineering Could Slow Antarctic Ice Loss Scattering sunlight-reflecting particles in the…
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NASA Unveils First-Ever Global Maps of Earth’s Surface Minerals
NASA’s EMIT produced its first global maps of hematite, goethite, and kaolinite in Earth’s dry regions using data from the year ending November 2023. The mission collected billions of measurements of the three minerals and seven others that may affect climate when lofted into the air as dust storms. Credit: NASA/JPL-Caltech EMIT delivers first-of-a-kind maps…
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As the Arctic warms, its waters are emitting carbon: Study
Sediment from Canada’s Mackenzie River empties into the Beaufort Sea in milky swirls in this 2017 satellite image. Scientists are studying how river discharge drives carbon dioxide emissions in this part of the Arctic Ocean. Credit: NASA Earth Observatory / Jesse Allen (using Landsat data from USGS) When it comes to influencing climate change, the…