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Categories: Geoscience: Environmental Issues
Published Red Snapper in the Gulf show signs of stress after Gulf oil spill
(via sciencedaily.com) Nearly all of the Red Snapper sampled in the Gulf of Mexico over a six-year period following the Deepwater Horizon oil spill showed evidence of liver damage.
Published Recyclable bioplastic membrane to clear oil spills from water
(via sciencedaily.com) Polymer scientists have developed a polymer membrane from biobased malic acid. It is a superamphiphilic vitrimer epoxy resin membrane that can be used to separate water and oil. This membrane is fully recyclable. When the pores are blocked by foulants, it can be depolymerized, cleaned and subsequently pressed into a new membrane.
Published Legume trees key to supporting tropical forest growth
(via sciencedaily.com) Researchers have found that nitrogen-fixing legume trees can support themselves and surrounding trees not only with increased access to nitrogen, but with other key nutrients through enhanced mineral weathering.
Published Want to cut emissions that cause climate change? Tax carbon
(via sciencedaily.com) Putting a price on producing carbon is the cheapest, most efficient policy change legislators can make to reduce emissions that cause climate change, new research suggests.
Published Gulf Oil Spill's long-lasting legacy for dolphins
(via sciencedaily.com) Health impacts from a 2010 spill are found even in dolphins born years later.
Published COVID-19 lockdown highlights ozone chemistry in China
(via sciencedaily.com) Recently, the ozone season in China has been getting longer, spreading from summer into early spring and late winter. The COVID-19 lockdown can help explain why. Researchers found that decreases in NOx emissions are driving increased ozone pollution in late winter in China.
Published Forests' long-term capacity to store carbon is dropping in regions with extreme annual fires
(via sciencedaily.com) Researchers have analysed decades' worth of data on the impact of repeated fires on ecosystems across the world. Their results show that repeated fires are driving long-term changes to tree communities and reducing their population sizes.
Published Traditional hydrologic models may misidentify snow as rain, new citizen science data shows
(via sciencedaily.com) Original source Normally, we think of the freezing point of water as 32°F - but in the world of weather forecasting and hydrologic prediction, that isn't always the case. In the Lake Tahoe region of the Sierra Nevada, the shift from snow to rain during winter storms may actually occur at temperatures closer to 39.5°F, according to new research from the Desert Research Institute (DRI), Lynker Technologies, and citizen scientists from the Tahoe Rain or Snow project.
Published Long-term exposure to low levels of air pollution increases risk of heart and lung disease
(via sciencedaily.com) Analysis of records for more than 63 million Medicare enrollees from 2000 to 2016 finds long-term exposure to air pollution had a significant impact on the number of people hospitalized for cardiac and respiratory conditions. Researchers examined three components of air pollution: fine particulate matter, nitrogen dioxide and ozone. Even levels lower than national standards affected heart and respiratory illnesses.
Published Oil spill has long-term immunological effects in dolphins
(via sciencedaily.com) A study has found long-term impacts of the 2010 Deepwater Horizon oil spill in the northern Gulf of Mexico on bottlenose dolphins' immune function.
Published Emissions of banned ozone-depleting substance are back on the decline
(via sciencedaily.com) Global emissions of a potent substance notorious for depleting the Earth's ozone layer -- the protective barrier which absorbs the Sun's harmful UV rays -- have fallen rapidly and are now back on the decline, according to new research.
Published How iodine-containing molecules contribute to the formation of atmospheric aerosols, affect climate
(via sciencedaily.com) Original source Chemists have helped discover that iodic acids can rapidly form aerosol particles in the atmosphere, giving scientists more knowledge of how iodine emissions can contribute to cloud formation and climate change.
Published Sensor and detoxifier in one
(via sciencedaily.com) Ozone is a problematic air pollutant that causes serious health problems. A newly developed material not only quickly and selectively indicates the presence of ozone, but also simultaneously renders the gas harmless. The porous '2-in-one systems' also function reliably in very humid air.
Published Extreme UV laser shows generation of atmospheric pollutant
(via sciencedaily.com) Scientists show that under laboratory conditions, ultraviolet light reacts with nitrophenol to produce smog-generating nitrous acid.
Published Immense hydrocarbon cycle discovered in world's ocean
(via sciencedaily.com) Hydrocarbons and petroleum are almost synonymous in environmental science. After all, oil reserves account for nearly all the hydrocarbons we encounter. But the few hydrocarbons that trace their origin to biological sources may play a larger ecological role than scientists originally suspected.
Published Failed storage tanks pose atmospheric risks during disasters
(via sciencedaily.com) Engineers model the hypothetical threats from toxins released when above-ground storage tanks fail during a storm. Using data from hurricanes Ike and Harvey and from the Houston Ship Channel, they illustrate potential atmospheric pollutants during and after a disaster.
Published Researchers trace geologic origins of Gulf of Mexico 'super basin' success
(via sciencedaily.com) The Gulf of Mexico holds huge untapped offshore oil deposits that could help power the U.S. for decades. According to researchers, the basin's vast oil and gas reserves are the result of a remarkable geologic past. Only a fraction of the oil has been extracted and much remains buried beneath ancient salt layers, just recently illuminated by modern seismic imaging.
Published Early COVID-19 lockdown in Delhi had less impact on urban air quality than first believed
(via sciencedaily.com) The first COVID-19 lockdowns led to significant changes in urban air pollution levels around the world, but the changes were smaller than expected, a new study reveals.
Published Potentially damaging surface ozone levels rose in lockdown, UK study finds
(via sciencedaily.com) A new study finds that less traffic on the roads during the first lockdown led to a reduction in air pollution but may have caused potentially damaging surface ozone levels to rise.
Published Scientists warn of likely massive oil spill endangering the Red Sea, region's health
(via sciencedaily.com) A new study is calling for action to remove the oil from a decaying and inactive tanker in the Red Sea that holds approximately one million barrels of oil - four times the amount of oil contained in the Exxon Valdez, the tanker that had a disastrous environmental oil spill in 1989 - before its current seepage turns into a massive oil spill into the sea.