Solar-Powered Water Wheels Prevented 1 Million Pounds of Trash From Entering Baltimore Harbor
Meet Mr. Trash Wheel and Professor Trash Wheel—a pair of floating, solar and hydro-powered trash interceptors keeping Baltimore's waters clean. These frankly adorable trash wheels can collect as much as 38,000 pounds of debris in a single day.
Mr. Trash Wheel, located at the mouth of Jones Falls, has stopped more than one million pounds of garbage from entering Baltimore's Inner Harbor since its installation in May 2014. Because it has been so effective, a second water wheel, "Professor Trash Wheel," was installed at Harris Creek Park in Canton and opened this past December.
Professor Trash Wheel has googly eyes like Mr. Trash Wheel but with eyelashes.
Luckily I have my eyes back! Thanks, @keytechinc! https://t.co/M1jBZ4i4lH— ProfessorTrashWheel (@ProfessorTrashWheel)1482506346.0
The anthropomorphized wheels have become so popular they have their own merchandise, their own social media pages (Mr. Trash Wheel: Twitter and Facebook; Professor Trash Wheel: Twitter and Facebook) and have done several amusing AMAs on Reddit.
When one Redditor asked, "If there were a 6th season of The Wire centering around trash in the Inner Harbor, what would the main plot points be? What roles would you and Professor Trash Wheel play?"
Mr. Trash Wheel responded:
"Here's the plot: Trash is over flowing the streets of Baltimore. Trash storms plague the city on a regular basis and micro plastics have formed a choking fog that sits on the city at all times. Professor Trash Wheel believes she can work within the system to get litter of the streets. She creates coalitions with nonprofits and government agencies to battle the rising tide of trash. Mr. Trash Wheel obeys no law or man. He goes rogue attacking trash on the streets, in the harbor, wherever he can find it. Who will win out? Find out on Season 6 of the Wire. David Simon, you have my number. Stop ignoring my texts"
I present to you the contents of my stomach. As you can see chip bags and styrofoam containers are my two major foo… https://t.co/fysnHS7GeQ— ProfessorTrashWheel (@ProfessorTrashWheel)1487189582.0
The iconic harbor is "polluted by millions of gallons of sewage, hundreds of tons of trash, and stormwater runoff are polluting the harbor and streams every year," the local environmental nonprofit states on its website.
"These conditions are threatening the lives of the fish, crabs, turtles, birds, and river otters that are part of the harbor, and even simple contact with the water can be dangerous due to the threat of waterborne diseases."
Solar-Powered Water Wheel Removes 350 Tons of Trash From Baltimore Harbor https://t.co/yjfgLNKqdC @surfrider @PlasticPollutes— EcoWatch (@EcoWatch)1450493421.0
The Baltimore Sun reported that local environmentalists would like to see at least two more water wheels to address the city's litter problem.
So how do these devices work? Using water currents, trash and debris floats into containment booms in front of the wheel. The trash moves onto a conveyor belt that leads to a dumpster barge. When the dumpster is full, the trash is towed away. A backup solar panel array powers the wheel when the current is not strong enough.
The collected material is weighed and separated into different categories: plastic bottles, polystyrene containers, cigarette butts, glass bottles, grocery bags and chip bags. Some of the trash is incinerated to help generate electricity for the city.
The trash wheel's creator, John Kellett, told National Geographic that it's a common misconception that people are littering directly into the water. Instead, most of the garbage—such as trash thrown from cars, illegal dumping and cigarettes butts—ends up in the watershed after it rains.
"If it rains, there is always trash," Kellett told the publication.
In about two-and-a-half years, Mr. Trash Wheel has picked up almost nine million cigarette butts and more than 300,000 plastic bags. It also picks up an average of 14,000 Styrofoam containers a month.
According to National Geographic, "the data is used to support environmental legislation. For example, the Waterfront Partnership recently supported a bill that would ban Styrofoam containers."
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Wisdom the mōlī, or Laysan albatross, is the oldest wild bird known to science at the age of at least 70. She is also, as of February 1, a new mother.
<div id="dadb2" class="rm-shortcode" data-rm-shortcode-id="aa2ad8cb566c9b4b6d2df2693669f6f9"><blockquote class="twitter-tweet twitter-custom-tweet" data-twitter-tweet-id="1357796504740761602" data-partner="rebelmouse"><div style="margin:1em 0">🚨Cute baby alert! Wisdom's chick has hatched!!! 🐣😍 Wisdom, a mōlī (Laysan albatross) and world’s oldest known, ban… https://t.co/Nco050ztBA</div> — USFWS Pacific Region (@USFWS Pacific Region)<a href="https://twitter.com/USFWSPacific/statuses/1357796504740761602">1612558888.0</a></blockquote></div>
By Hui Hu
Winter is supposed to be the best season for wind power – the winds are stronger, and since air density increases as the temperature drops, more force is pushing on the blades. But winter also comes with a problem: freezing weather.
Comparing rime ice and glaze ice shows how each changes the texture of the blade. Gao, Liu and Hu, 2021, CC BY-ND
Ice buildup changes air flow around the turbine blade, which can slow it down. The top photos show ice forming after 10 minutes at different temperatures in the Wind Research Tunnel. The lower measurements show airflow separation as ice accumulates. Icing Research Tunnel of Iowa State University, CC BY-ND
While traditional investment in the ocean technology sector has been tentative, growth in Israeli maritime innovations has been exponential in the last few years, and environmental concern has come to the forefront.
theDOCK aims to innovate the Israeli maritime sector. Pexels<p>The UN hopes that new investments in ocean science and technology will help turn the tide for the oceans. As such, this year kicked off the <a href="https://www.oceandecade.org/" target="_blank" rel="noopener noreferrer">United Nations Decade of Ocean Science for Sustainable Development (2021-2030)</a> to galvanize massive support for the blue economy.</p><p>According to the World Bank, the blue economy is the "sustainable use of ocean resources for economic growth, improved livelihoods, and jobs while preserving the health of ocean ecosystem," <a href="https://www.sciencedirect.com/science/article/pii/S0160412019338255#b0245" target="_blank" rel="noopener noreferrer">Science Direct</a> reported. It represents this new sector for investments and innovations that work in tandem with the oceans rather than in exploitation of them.</p><p>As recently as Aug. 2020, <a href="https://www.reutersevents.com/sustainability/esg-investors-slow-make-waves-25tn-ocean-economy" target="_blank" rel="noopener noreferrer">Reuters</a> noted that ESG Investors, those looking to invest in opportunities that have a positive impact in environmental, social and governance (ESG) issues, have been interested in "blue finance" but slow to invest.</p><p>"It is a hugely under-invested economic opportunity that is crucial to the way we have to address living on one planet," Simon Dent, director of blue investments at Mirova Natural Capital, told Reuters.</p><p>Even with slow investment, the blue economy is still expected to expand at twice the rate of the mainstream economy by 2030, Reuters reported. It already contributes $2.5tn a year in economic output, the report noted.</p><p>Current, upward <a href="https://www.ecowatch.com/-innovation-blue-economy-2646147405.html" target="_self">shifts in blue economy investments are being driven by innovation</a>, a trend the UN hopes will continue globally for the benefit of all oceans and people.</p><p>In Israel, this push has successfully translated into investment in and innovation of global ports, shipping, logistics and offshore sectors. The "Startup Nation," as Israel is often called, has seen its maritime tech ecosystem grow "significantly" in recent years and expects that growth to "accelerate dramatically," <a href="https://itrade.gov.il/belgium-english/how-israel-is-becoming-a-port-of-call-for-maritime-innovation/" target="_blank" rel="noopener noreferrer">iTrade</a> reported.</p><p>Driving this wave of momentum has been rising Israeli venture capital hub <a href="https://www.thedockinnovation.com/" target="_blank" rel="noopener noreferrer">theDOCK</a>. Founded by Israeli Navy veterans in 2017, theDOCK works with early-stage companies in the maritime space to bring their solutions to market. The hub's pioneering efforts ignited Israel's maritime technology sector, and now, with their new fund, theDOCK is motivating these high-tech solutions to also address ESG criteria.</p><p>"While ESG has always been on theDOCK's agenda, this theme has become even more of a priority," Nir Gartzman, theDOCK's managing partner, told EcoWatch. "80 percent of the startups in our portfolio (for theDOCK's Navigator II fund) will have a primary or secondary contribution to environmental, social and governance (ESG) criteria."</p><p>In a company presentation, theDOCK called contribution to the ESG agenda a "hot discussion topic" for traditional players in the space and their boards, many of whom are looking to adopt new technologies with a positive impact on the planet. The focus is on reducing carbon emissions and protecting the environment, the presentation outlines. As such, theDOCK also explicitly screens candidate investments by ESG criteria as well.</p><p>Within the maritime space, environmental innovations could include measures like increased fuel and energy efficiency, better monitoring of potential pollution sources, improved waste and air emissions management and processing of marine debris/trash into reusable materials, theDOCK's presentation noted.</p>
theDOCK team includes (left to right) Michal Hendel-Sufa, Head of Alliances, Noa Schuman, CMO, Nir Gartzman, Co-Founder & Managing Partner, and Hannan Carmeli, Co-Founder & Managing Partner. Dudu Koren<p>theDOCK's own portfolio includes companies like Orca AI, which uses an intelligent collision avoidance system to reduce the probability of oil or fuel spills, AiDock, which eliminates the use of paper by automating the customs clearance process, and DockTech, which uses depth "crowdsourcing" data to map riverbeds in real-time and optimize cargo loading, thereby reducing trips and fuel usage while also avoiding groundings.</p><p>"Oceans are a big opportunity primarily because they are just that – big!" theDOCK's Chief Marketing Officer Noa Schuman summarized. "As such, the magnitude of their criticality to the global ecosystem, the magnitude of pollution risk and the steps needed to overcome those challenges – are all huge."</p><p>There is hope that this wave of interest and investment in environmentally-positive maritime technologies will accelerate the blue economy and ESG investing even further, in Israel and beyond.</p>
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