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Top Stories for August 2
Lockdowns and snow melt in South Asia
Relatively clean snow and ice in the Indus River Basin during the COVID-19 pandemic may have reduced meltwater in 2020, compared with the 20-year average.
Research article published in PNAS
"COVID-19 lockdowns show reduced pollution on snow and ice in the Indus River Basin," by Edward Bair, Timbo Stillinger, Karl Rittger, and McKenzie Skiles.
Greenhouse warming of early Mars
Atmospheric and climate conditions could have created a cloud greenhouse effect to warm Mars and support liquid surface water.
Research article published in PNAS
"Warm early Mars surface enabled by high-altitude water ice clouds," by Edwin S. Kite, Liam J. Steele, Michael A. Mischna, Mark I. Richardson.
COVID-19. Image credit: Pixabay/Matryx.
Risk of indoor aerosol transmission
Researchers report a safety guideline to limit airborne transmission of COVID-19 that goes beyond the six-foot social distancing guideline.
Research article published in PNAS
"A guideline to limit indoor airborne transmission of COVID-19," by Martin Z. Bazant and John W. M. Bush.
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Profile of James H. Hurley
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Adélie penguins at Adélie Cove, Terra Nova Bay
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Microplastics in the atmosphere
Even after atmospheric microplastics settle on land or in water, they may reenter the atmosphere, a study suggests.
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Publicized racial violence and Black mental health
Researchers examine how highly public racial violence affects the mental health of Black individuals in the United States.
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Anthropogenic transformation of terrestrial nature
A study examines how humans have reshaped terrestrial nature and suggests that restoring Indigenous peoples and local communities to positions of environmental stewardship may help conserve biodiversity.
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