Barrier to Stop Plastic Waste From Reaching the Sea Launches in Amsterdam
The scourge of plastic waste that washes up on once-pristine beaches and finds its way into the middle of the ocean often starts on land, is dumped in rivers and canals, and gets carried out to sea. At the current rate, marine plastic is predicted to outweigh all the fish in the seas by 2050, according to Silicon Canals.
Now, a Dutch start-up has launched a barrier device to remove plastic from canals and rivers while allowing fish to swim right through, as The Guardian reported.
The Great Bubble Barrier, an innovative start-up, teamed up with the Amsterdam municipal government and the regional water board to launch their device last week in Amsterdam's Westerdok Canal, at the tip of city's historic canal belt. The canal is an ideal starting point since it empties into the IJ river, which feeds the North Sea Canal and then the North Sea, as Silicon Canals reported.
"This is an important milestone," said Francis Zoet, co-founder of The Great Bubble Barrier start-up, as DutchNews reported. "This is the first project that is going to stop plastic from ending up in the sea."
The device consists of a pipe nearly 200 feet long that is punctured with holes and laid at the bottom of the canal. It sits at the canal bed on a diagonal line. Compressed air is pumped into the pipe, which then forms bubbles as it leaves. Since it is positioned diagonally, pieces of plastic are pushed toward the side of the canal by the bubbles. Then a floating platform captures the litter, as DutchNews reported.
Preliminary tests of the project, which has taken three years, show that the device is capable of ushering 80 percent of the canal's plastic waste to its banks. Furthermore, it works 24 hours a day and does not interfere with shipping or wildlife, according to The Great Bubble Barrier.
"More than two-thirds of plastics in the ocean comes out of rivers and canals – so if you have to intercept it, why not do it in the rivers?" said Philip Ehrhorn, co-inventor of the technology, as The Guardian reported. "You can't put a physical barrier in a canal: it has to be open for wildlife and recreation."
The Great Bubble Barrier will supplement current cleanup efforts in Amsterdam. Each year, a team of five garbage boats removes nearly 92,600 pounds of trash from the city's waterways, but small pieces of trash and plastic at the bottom of the canals simply slip through the nets.
"Plastic in our water is becoming an increasing problem [and] has profound effects on the quality of our water and therefore on everything that lives in or near the water," said Sander Mager, a board member of The Great Bubble Barrier, at the launch, as DutchNews reported. "This is precisely why it is important for the water management board to collaborate intensively with others to make a stand against this socially urgent problem."
The trash collected by The Great Bubble Barrier will be collected separately from what the garbage boats collect. The plastics action group Schone Rivieren, which translates to Clean Rivers, will analyze the waste.
"Amsterdam's canals have enormous appeal," said Marieke van Doorninck, head of sustainability for Amsterdam council, as The Guardian reported. "But when you think of them, you don't think about plastic bottles and bags in the water. The bubble barrier will mean fewer plastics reach the ocean, and is a step towards better regulation of our ecosystem, to the benefit of man, beast and environment."
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By Julia Conley
A new campaign unveiled this weekend by the nonprofit organization Fossil Free Media aims to expand on the goals of the fossil fuel divestment movement, cutting into oil and gas companies' profit margins through their public relations and ad campaigns.
<div id="1dcf1" class="rm-shortcode" data-rm-shortcode-id="d5e39a5a3812bc2589ba8aa0563756e0"><blockquote class="twitter-tweet twitter-custom-tweet" data-twitter-tweet-id="1330177734799208465" data-partner="rebelmouse"><div style="margin:1em 0">PR and ad companies' work for the fossil fuel industry is pushing the planet past the breaking point.… https://t.co/wOuDBM26ne</div> — Clean Creatives (@Clean Creatives)<a href="https://twitter.com/cleancreatives/statuses/1330177734799208465">1605974060.0</a></blockquote></div>
<div id="21b90" class="rm-shortcode" data-rm-shortcode-id="bdc23e69ff18075b4fb5df6d4939b9f5"><blockquote class="twitter-tweet twitter-custom-tweet" data-twitter-tweet-id="1330205383848288257" data-partner="rebelmouse"><div style="margin:1em 0">Porter Novelli isn't some small shop: they've got offices and clients in 60 countries and are part of @Omnicom, the… https://t.co/iw0BCmrdzx</div> — Jamie Henn (@Jamie Henn)<a href="https://twitter.com/jamieclimate/statuses/1330205383848288257">1605980652.0</a></blockquote></div><p>"It's a BIG deal that they're dropping fossil fuel clients—let's make sure it's the drop that starts a flood," wrote Henn. </p>
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By Jason Farley
COVID-19 has disrupted our daily lives, and it is poised to completely disrupt the holiday season. As people make holiday plans and think about ways to reduce the risks to their loved ones, a strategy is essential.
Are masks really necessary at family gatherings?<p>If you're gathering with friends and family who don't live in your home, yes. Just because you're with people you know doesn't mean you're safe from the coronavirus. Infection rates are <a href="https://coronavirus.jhu.edu/data/new-cases-50-states" target="_blank" rel="noopener noreferrer">higher now than they have ever been</a> in the U.S., and <a href="https://youtu.be/ehdgceGzQxs" target="_blank" rel="noopener noreferrer">small gatherings have been a source</a> of viral spread. All it takes is one infected person who doesn't know they have the coronavirus to infect others.</p><p>Remember, people can be <a href="https://medical.mit.edu/covid-19-updates/2020/07/how-long-symptom-onset-person-contagious" target="_blank" rel="noopener noreferrer">contagious two to three days</a> before symptoms show – that's one thing that makes this virus so hard to stop. And it's why, even if you feel fine, you should wear a mask.</p><p>The Centers for Disease Control and Prevention now estimates that when both people are wearing masks, the <a href="https://www.cdc.gov/coronavirus/2019-ncov/more/masking-science-sars-cov2.html" target="_blank">likelihood of infection is low</a>.</p>
Who am I protecting when I wear a mask?<p>In a word: everyone. The coronavirus <a href="https://theconversation.com/aerosols-are-a-bigger-coronavirus-threat-than-who-guidelines-suggest-heres-what-you-need-to-know-142233" target="_blank">spreads through respiratory droplets</a> that you send out into the air when you talk, sing or even just breathe. The tiniest of these droplets can float on air currents for long periods.</p><p>Face masks stop many of those droplets, reducing the amount of virus in the air. That lowers your chances of getting infected, and it also lowers the chances that you'll infect someone else.</p><p><a href="https://www.cdc.gov/coronavirus/2019-ncov/more/masking-science-sars-cov2.html" target="_blank">Studies of people who had prolonged exposure</a> to others with COVID-19 have demonstrated how masks can reduce the chance of the virus spreading. In general, <a href="https://www.cdc.gov/coronavirus/2019-ncov/more/masking-science-sars-cov2.html" target="_blank" rel="noopener noreferrer">well-fitted cloth masks</a> made up of multiple layers can stop most large droplets and at least half of the tiny ones. Plastic <a href="https://doi.org/10.1101/2020.10.05.20207241" target="_blank" rel="noopener noreferrer">face shields</a> alone are far less effective. <a href="https://www.washingtonpost.com/health/2020/08/13/cdc-mask-guidance-masks-valves/" target="_blank" rel="noopener noreferrer">Face masks with valves or vents</a> might be good for construction work, but they don't stop the wearer from breathing out virus into the air.</p>
Can I reuse a mask and when should I replace it?<p>Reusable masks should be kept clean and dry. We're moving into cold and flu season, and noses get drippy. A rule of thumb: Anytime a mask is wet to the point that you can discern the wetness, it's time for a new one if it's disposable, or it's time to clean your reusable mask.</p><p>Wetness allows viruses to more easily move through paper or fabric because it allows the threads to move and may reduce the electrostatic charge in the masks that add extra protection with some fabrics.</p><p>In general, you can use a mask that stays clean and dry for about a week before you need to wash or discard it.</p>
How should I clean a cloth mask?<p>Washing your mask is like washing your clothes. You know when it is time.</p><p>In general, <a href="https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-sick/how-to-wash-cloth-face-coverings.html" target="_blank">cleaning your mask weekly</a> should be sufficient. If odors develop before then, it's a good idea to wash it sooner. Odor generally means bacterial buildup.</p><p>Cleaning your mask by hand with soap and water is your best option. Using a general detergent on a gentle cycle in the washing machine is also fine, but that may increase the risk of damage, depending on the quality of the material. COVID-19 is not a hardy virus. Any soap or detergent should work fine. There's no need for special chemicals, bleach or harsh soaps.</p><p>Be careful to remove any inserts before washing. Inserted filters are generally not washable.</p><p>Air drying masks works best. Remember, masks should be completely dry before use. So be sure to have a replacement mask handy while the one you just washed dries.</p><p>Sunlight is always a great source of heat to dry your mask. Also, sunlight has ultraviolet radiation, which has been shown to <a href="http://doi.org/10.1111/php.13293" target="_blank" rel="noopener noreferrer">eliminate coronavirus</a> and is also known to have antibacterial properties.</p>
Can I wear the mask below my nose?<p>Wearing your mask below your nose is, frankly, ridiculous.</p><p>Think about it. If you are breathing through your nose and only covering your mouth, you are effectively eliminating the point of the mask. Properly wearing a mask requires covering both your nose and mouth at all times.</p><p>Studies show that wearing a proper cloth mask or surgical mask while exercising <a href="http://doi.org/10.1513/AnnalsATS.202008-990CME" target="_blank">doesn't affect the flow of oxygen</a> or carbon dioxide in any detectable way. So, unless you have serious heart and lung problems, that isn't an excuse.</p>
How do I safely remove my mask if I’m going to eat or drink?<p>When you <a href="https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-sick/how-to-wash-cloth-face-coverings.html" target="_blank">take your mask off</a>, remove it carefully by the straps without touching anything else and put it somewhere safe, like wrapped in paper in a purse, bag or pocket. Then wash your hands or use hand sanitizer. When you put it back on, wash your hands again.</p>
So, how can I have a safe holiday gathering?<p>The safest way to celebrate this year is to do so with members only within your household. The <a href="https://www.cdc.gov/coronavirus/2019-ncov/daily-life-coping/holidays.html" target="_blank" rel="noopener noreferrer">CDC is now stressing that point</a>, as well. If you do celebrate with friends and relatives from outside your household, you need an action plan to reduce the risk of exposure.</p><p>Here are five recommendations:</p><ul><li>Limit the number of people – fewer people means fewer opportunities for exposure, and you'll have more room to spread out.</li><li>Require masks when not eating or drinking.</li><li>Use physical distancing when eating. Try to seat people <a href="https://doi.org/10.1136/bmj.m3223" target="_blank" rel="noopener noreferrer">at least 6 feet apart</a>. Eat outside if you can.</li><li>Consider being tested for COVID-19 before traveling or gathering. It's not a guarantee, but it can help flag illnesses. Remember to self-isolate between the test and the event.</li><li>Be prepared to self-isolate for 14 days after traveling or participating in any event that involves people from outside your home.</li></ul><p>[<em>Research into coronavirus and other news from science</em> <a href="https://theconversation.com/us/newsletters/science-editors-picks-71/?utm_source=TCUS&utm_medium=inline-link&utm_campaign=newsletter-text&utm_content=science-corona-research" target="_blank" rel="noopener noreferrer">Subscribe to The Conversation's new science newsletter</a>.]</p><p><em>The map has been updated with New Hampshire announcing a mask mandate effective Nov. 20.</em></p><p><em>Jason Farley is a professor, infectious disease-trained epidemiologist and nurse practitioner at the Johns Hopkins University School of Nursing.<br></em></p><p><em>Disclosure statement: Jason Farley, PhD, MPH, ANP-BC, FAAN receives funding from the National Institutes of Health on the Rapid Acceleration of Diagnostics for COVID-19 and Becton Dickinson for studies on SARS-CoV-2 diagnostics.</em></p><p><em>Reposted with permission from <a href="https://theconversation.com/why-face-masks-belong-at-your-thanksgiving-gathering-7-things-you-need-to-know-about-wearing-them-150130" target="_blank">The Conversation</a>. </em></p>
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