More Microplastics in Deep Sea Than Great Pacific Garbage Patch
Researchers at the Monterey Bay Aquarium and the Monterey Bay Aquarium Research Institute (MBARI) used small drone submarines to take sea-water samples from the ocean surface all the way down to the floor, at 3,200 feet. They found that there were actually more microplastics 1,000 feet below sea level than there are in the Great Pacific Garbage Patch, USA Today reported. The findings come as people around the world prepare to celebrate World Oceans Day Saturday and gives new insight into how plastics impact the entire marine environment.
"We didn't think there would be four times as much plastic floating at depth than at the surface," Monterey Bay Aquarium Chief Scientist Kyle Van Houtan told USA Today. But that is what the researchers found when they compared their samples.
The samples were taken off the California coast in Monterey Bay, where the continent suddenly plummets, making it easier for researchers to investigate a part of the ocean whose plastic content has not been studied in depth, NPR reported.
"The deep ocean is the largest ecosystem on the planet," Van Houtan told NPR, "and we don't know anything about the plastic in the deep ocean."
The research, published in Scientific Reports Thursday, begins to fill in that knowledge gap. It found that the highest concentration of microplastics was between 600 and 2,000 feet below sea level. The maximum concentration discovered was 16 particles per cubic meter of water, four particles per cubic meter more than are found in the garbage patch.
"Scientists are now beginning to realize that microplastics are truly ubiquitous. They've been found from the seafloor to the mountain tops, in the air we breathe and in the salt we put on our meals," University of Exeter conservation scientist Brendan Godley, who was not involved in the research, told USA Today.
The plastic in the deep ocean is also making its way into the food web via the creatures that live there. Researchers sampled two: pelagic red crabs and giant larvaceans, a creature similar to a tadpole. Both are species that travel from the surface to the ocean floor daily. Plastic was found in all of the sampled animals' digestive tracts, The Guardian reported.
It was actually the prevalence of microplastics in the guts of deep sea species that inspired the research, study author and Scripps Institution of Oceanography at the University of California, San Diego scientist Anela Choy told The Guardian. She said she would routinely find plastic bits like bottle caps or trash bags while studying the diets of tuna and other fish who live around 1,000 feet below sea level.
"It was so strange," Choy told The Guardian. "We were seeing recognizable pieces of human society."
Previously, we assessed how deep-sea animals like the giant larvacean fed on these tiny plastic pieces, filtering &… https://t.co/YBJooDoUPY— Anela Choy (@Anela Choy)1559863076.0
Another thing that surprised the researchers was the type of plastic they found. While some have hypothesized that the ma
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A herdsman in the Chinese autonomous region of Inner Mongolia was diagnosed with the bubonic plague Sunday, The New York Times reported.
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By Matt Kasson, Brian Lovett and Carolee Bull
Home gardening is having a boom year across the U.S. Whether they're growing their own food in response to pandemic shortages or just looking for a diversion, numerous aspiring gardeners have constructed their first raised beds, and seeds are flying off suppliers' shelves. Now that gardens are largely planted, much of the work for the next several months revolves around keeping them healthy.
Start With Prevention<p>Just as preventive steps like maintaining a balanced diet help keep humans healthy, home growers can take many actions to help their gardens thrive.</p><p>One key step is assessing soil fertility – the ability of soil to sustain plant growth – which can vary widely depending on your location and soil type. Low soil fertility limits food production and predisposes plants to disease and pests. University extension <a href="https://soiltesting.wvu.edu/" target="_blank">soil testing labs</a> can help evaluate the quality of garden soil and identify nutrient deficiencies and acidic soils, often at no charge.</p>
Using weed barrier landscape cloth for planting rows and mulching between rows is an effective way to suppress weeds. Matt Kasson, CC BY-ND
Diagnosing Problems<p>Common plant pathogens include <a href="https://www.apsnet.org/edcenter/disandpath/viral/introduction/Pages/PlantViruses.aspx" target="_blank">viruses</a>, <a href="https://www.apsnet.org/edcenter/disandpath/prokaryote/intro/Pages/Bacteria.aspx" target="_blank">bacteria</a>, <a href="https://www.apsnet.org/edcenter/disandpath/nematode/intro/Pages/IntroNematodes.aspx" target="_blank">nematodes</a>, <a href="https://www.apsnet.org/edcenter/disandpath/oomycete/introduction/Pages/IntroOomycetes.aspx#:%7E:text=The%20oomycetes%2C%20also%20known%20as,foliar%20blights%20and%20downy%20mildews." target="_blank">oomycetes</a> and <a href="https://www.apsnet.org/edcenter/disandpath/fungalasco/intro/Pages/IntroFungi.aspx" target="_blank">fungi</a>. All of these microorganisms, especially at an early stage of infection, are too small to see. But when they proliferate, they cause changes in plants that we can recognize.</p><p>Unlike insects, which move around on six legs or on wings through the air, pathogens can move unseen and unchecked from leaf to leaf on the wind, through the soil or in droplets of water. Some microbes have even formed intimate relationships with insects and use them as vehicles to move from plant to plant, which makes these pathogens even more challenging to manage. Unfortunately, by the time some pathogens make their presence known, the damage is already done.</p><p>We recently conducted a <a href="https://twitter.com/kasson_wvu/status/1265989041725624323" target="_blank">Twitter poll</a> of gardeners nationwide to find out which culprits plagued their gardens. People named <a href="https://ento.psu.edu/extension/factsheets/aphids" target="_blank">aphids</a>, <a href="https://ento.psu.edu/extension/factsheets/squash-vine-borer" target="_blank">squash vine borers</a>, <a href="https://ento.psu.edu/extension/factsheets/squash-bug" target="_blank">squash bugs</a> and <a href="https://ento.psu.edu/extension/factsheets/flea-beetle" target="_blank">flea beetles</a> as the most problematic insect pests. Their most troublesome pathogens included <a href="https://extension.wvu.edu/lawn-gardening-pests/plant-disease/fruit-vegetable-diseases/powdery-mildew" target="_blank">powdery mildew</a>, <a href="https://plantpath.ifas.ufl.edu/rsol/Trainingmodules/BWTomato_Module.html" target="_blank">tomato bacterial wilt</a> and <a href="https://extension.wvu.edu/lawn-gardening-pests/plant-disease/fruit-vegetable-diseases/downy-mildew" target="_blank">cucurbit downy mildew</a>.</p><p>To manage such perennial challenges, the first step is to spend time closely looking at your plants. Do you notice any insects consistently hanging around, or molds colonizing leaves or other plant parts? How about symptoms such as blight, stunting, or leaves that are yellowing, browning or wilting?</p>
This white fungal growth is an early sign of powdery mildew on a leaf of susceptible summer squash. Matt Kasson, CC BY-ND
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By Emma Charlton
The effects of climate change may more far-reaching than you think.
Hotter temperatures have been linked to a rise in energy poverty, with more people struggling to meet their energy bills from their household income, according to a new study published on ScienceDirect by researchers from Italy's Ca' Foscari University.
Value of air conditioning imports in selected OECD countries. ScienceDirect
The ‘Golden Thread’<p>The <a href="https://www.endenergypoverty.org/reports" target="_blank">Global Commission to End Energy Poverty</a> calls access to energy the "golden thread" that weaves together economic growth, human development, and environmental sustainability. And one of the <a href="https://www.weforum.org/agenda/archive/sdg-07-affordable-and-clean-energy" target="_blank">United Nations' Sustainable Development Goals</a> is to ensure access to affordable, reliable, sustainable and modern energy for all by 2030.</p><p>Sustainability also has a large role to play in the future of energy and failing to embed green policies in COVID-19 stimulus packages and underinvesting in green infrastructure are current risks, according to the <a href="http://www3.weforum.org/docs/WEF_COVID_19_Risks_Outlook_Special_Edition_Pages.pdf" target="_blank">World Economic Forum</a>.</p><p>In its vision for a 'Great Reset' – building a better world after the pandemic – the Forum and the IMF jointly backed the <a href="https://www.weforum.org/agenda/2020/06/end-fossil-fuel-subsidies-economy-imf-georgieva-great-reset-climate/" target="_blank">transition to a green economy</a> and called for an end to fossil fuel subsidies.</p>
As if the surging cases of coronavirus weren't enough for Floridians to handle, now the state's Department of Health (DOH) has confirmed that a person in the Tampa area tested positive for a rare brain-eating amoeba, according to CBS News. The Florida DOH posted a warning to residents to remind them of the dangers of the rare single-celled amoeba that attacks brain tissue.
Scientists are urging the WHO to revisit their coronavirus guidance to focus more on airborne transmission and less on hand sanitizer and hygiene. John Lund / Photodisc / Getty Images
The World Health Organization (WHO) is holding the line on its stance that the respiratory droplets of the coronavirus fall quickly to the floor and are not infectious. Now, a group of 239 scientists is challenging that assertion, arguing that the virus is lingering in the air of indoor environments, infecting people nearby, as The New York Times reported.
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Scores of people remained stranded in southern Japan on Sunday after heavy rain the day before caused deep flooding and mudslides that left at least 34 people confirmed or presumed dead.
Care Home Inundated<p>Altogether 16 residents at an elderly care home in Kuma Village are presumed dead after the facility was flooded by water and mud.</p><p>Fifty-one other residents have been rescued by boats and taken to hospitals for treatment, officials said.</p><p>Eighteen other people elsewhere have been confirmed dead, while more than a dozen others were still missing as of Sunday afternoon.</p><p>The Fire and Disaster Management Agency said many others were still waiting to be rescued from other inundated areas.</p><p>Hitoyoshi City was also badly affected by flooding, as rains in the prefecture exceeded 100 millimeters (4 inches) per hour at their height.</p>
More Rain Forecast<p>The disaster in the Kumamoto prefecture on Kyushu island is the worst natural catastrophe since Typhoon Hagibis in October last year, which cost the lives of 90 people.</p><p>Although residents in Kumamoto prefecture were advised to evacuate their homes following the downpours on Friday evening into Saturday, many people chose not to leave for fear of contracting the coronavirus.</p><p>Officials say, however, that measures are in place at shelters to prevent the transmission of the disease.</p><p>More rain is predicted in the region, and the Japan Meteorological Agency has warned of the danger of further mudslides.</p>
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