Increasing factory and auto emissions disrupt natural cycle in East China Sea

China's rapid ascent to global economic superpower is taking a toll on some of its ancient ways. For millennia, people have patterned their lives and diets around the vast fisheries of the East China Sea, but now those waters are increasingly threatened by human-caused, harmful algal blooms that choke off vital fish populations, according to a new study.

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Mandaue council beefs up ordinance against cutting of mangroves - Inquirer.net

Inquirer.net

Mandaue council beefs up ordinance against cutting of mangroves Inquirer.net THE Mandaue City Council amended its Local Fisheries Code with more stringent provisions and penalties against the cutting of mangrove trees in the city. The amendments now prohibit the cutting, damaging and conversion of mangroves to fish ponds and ...

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Hudson Estuary riverfront conference scheduled for April 27 at FDR Presidential Library and Home - The Daily Freeman

The Daily Freeman

Hudson Estuary riverfront conference scheduled for April 27 at FDR Presidential Library and Home The Daily Freeman HYDE PARK, N.Y. >> A day-long conference will bring together Hudson Estuary riverfront stakeholders to advance resiliency planning for their natural and community resources in an age of sea-level rise due to climate change. “Hudson River on the Rise: ...

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Study Makes Compelling Case for Jack London Estuary Bridge - Streetsblog San Francisco (blog)

Streetsblog San Francisco (blog)

Study Makes Compelling Case for Jack London Estuary Bridge Streetsblog San Francisco (blog) That fact is just one of many from the study that shows the increasing demand for improved bicycle infrastructure on Alameda Island–most notably for a bicycle and pedestrian estuary bridge connecting to Jack London Square. Currently, the only route for ...

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Bacteria in estuaries have genes for antibiotic resistance - Phys.Org

Phys.Org

Bacteria in estuaries have genes for antibiotic resistance Phys.Org "By eating fish or crustaceans, for example, sourced from estuary regions, we could be exposed to rare antibiotic resistance genes that could spread quickly through large numbers of people. These resistance genes could change the natural bacteria in ... Superbug risk: high levels of antibiotic resistance genes found in estuariesIllawarra Mercury all 2 news articles »

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Marmion hears pleas on Estuary bridge upgrade | Mandurah Mail - Mandurah Mail

Mandurah Mail

Marmion hears pleas on Estuary bridge upgrade | Mandurah Mail Mandurah Mail Transport minister Bill Marmion met with locals at Mandurah's Estuary Bridge on Tuesday morning to hear complaints about traffic congestion first hand. and more »

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Large marine protected areas effectively protect reef shark populations

Expanded marine protected areas are successful in limiting fishing and increasing reef shark populations, report scientists.

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The making of Antarctica

A group of researchers suggest that the best way to understand the creation of the glaciers in Antarctica is by linking two competing theories about their origins. They argue that the deepening of the Drake Passage changed patterns of ocean circulation which in turn resulted in a drop in carbon dioxide in the atmosphere to a threshold that allowed glaciation to take place.

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Researching Nanobubble Application and Characterisation via Nanoparticle Tracking Analysis

Following earlier scepticism about their actual existence, the reality of surface nanobubbles is becoming fairly well established after investigation by a number of groups, while confirmation of bulk nanobubbles in solution and their characterization…

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An Automated Image Analysis of the Differing Metal Powder Shapes Created By Various Atomization Processes

The production of complex-shaped metal parts via Metal Injection Molding (MIM) is a heavily expanding industry, and the characteristics of the metal powders play an active role in determining the properties and efficiency of the MIM parts.

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New ocean observations improve understanding of motion

Oceanographers commonly calculate large scale surface ocean circulation from satellite sea level information using a concept called 'geostrophy', which describes the relationship between oceanic surface flows and sea level gradient. Conversely, researchers rely on data from in-water current meters to measure smaller scale motion. New research has determined from observational data the length scale at which using sea level height no longer offers a reliable calculation of circulation.

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Mangrove cell of forest department to map green cover - Times of India

Mangrove cell of forest department to map green cover Times of India NAVI MUMBAI: The mangrove cell of the forest department will map the green cover with its record of 2005 to find out if any mangrove has got destroyed due to debri dumping on a big area admeasuring around 25000 sq ft behind Swaminarayan temple, ...

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The Human Element of Mangrove Management - Forests News, Center for International Forestry Research (blog)

The Human Element of Mangrove Management Forests News, Center for International Forestry Research (blog) As global climate change continues to threaten coastal communities in the tropics, governments have increasingly focused on the promotion and conservation of mangrove forests for their protective qualities. Mangroves — trees and shrubs that grow in ...

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Scientists unravel the process of meltwater in ocean depths

An international team of researchers has discovered why fresh water, melted from Antarctic ice sheets, is often detected below the surface of the ocean, rather than rising to the top above denser seawater.

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Survey of the Association of State Drinking Water Administrators (ASDWA)

NSF International, in cooperation with the Association of State Drinking Water Administrators (ASDWA), conducted a survey of US state drinking water agencies about their recognition and use of NSF / ANSI standards.

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The Kelp of Luxury

How do you define class? How do you define luxury? How do you define an experience like no other at 30,000 feet in the sky?

Why, by reaching 30 feet deep.

That’s the lesson of Emirates Air that will now provide their first class travelers with the ultimate definition of a life of luxury. What is the true definition of decadence in the sky? Three words.

Moist. Kelp. Pajamas.

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Southern Italy: Earthquake hazard due to active plate boundary

Tectonically, the Mediterranean is extremely active and thus threatened by natural catastrophes. Over the last few years an international team of researchers has intensively studied the seafloor south of Sicily and Calabria. In their study, they found evidence for recent tectonic activity on a plate boundary, which can cause strong earthquakes.

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Survey of the Association of State Drinking Water Administrators (ASDWA)

NSF International, in cooperation with the Association of State Drinking Water Administrators (ASDWA), conducted a survey of US state drinking water agencies about their recognition and use of NSF / ANSI standards.

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NSF / ANSI 61: Your Answer for Lead-Free

From 4 January 2014, all non-exempt pipes, pipe fittings, plumbing fittings and fixtures manufactured with NSF / ANSI 61 certification will comply with the lead-free requirements of the Safe Drinking Water Act (SDWA).

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Unexpected result: Ocean acidification can also promote shell formation

More carbon dioxide in the air also acidifies the oceans. It seemed to be the logical conclusion that shellfish and corals will suffer, because chalk formation becomes more difficult in more acidic seawater. But now a group of scientists discovered to their own surprise that some tiny unicellular shellfish (foraminifera) make better shells in an acidic environment. This is a completely new insight.

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How do bone-eating worms eat bones?

The deep-sea Osedax bone-devouring worms could easily have been the poster child for Deep-Sea News instead of the Giant Squid.    I love them because Osedax these little soft sacks resemble snotty little flowers.  Perhaps that’s why the first named species got the Latin name of Osedax mucofloris, literally bone devouring mucus flower.

The females are all business sex of the Osedax, the gender that actually “eats” the bones of whales and other vertebrates on the deep seafloor.  The female worms have dwarf males, up to 114 in Osedax rubiplumus, fruiting around inside of their body. And the larger, older ladies have larger harems. Everyone loves a cougar.

Figure from Vrijenhoek et al 2009 in BMC Biology.

Osedax is Latin for “bone devourer”.  Not quite accurate as they don’t feed on the actual carbonated hydroxyapatite, i.e. bone mineral, but rather the fats within the bone matrix. What’s not to love about these wee beasties that live off the lipids stored in bones of long-dead whales lying on the seafloor? And any bone will do.  Osedax will inhabit just about any bone, including steak bones thrown overboard as waste.

Osedax have no mouth, anus, or gut. The females extend roots into the bones to tap into these nutrient reserves.  Vertebrate bones are made of both organic and inorganic components including the main inorganic component calcium phosphate.  V-H+ ATPase and CA antibodies That is a mouthful so we will go with VATCA which sounds like Vodka with faked Russian accent.  So VATCA is expressed in vertebrates and allows through resorption of bones through acidification. Osedax expresses VATCA, potentially the only invertebrate to do so.  Because…yeah…invertebrates are boneless and don’t need bone-dissolving acids.  So basically Osedax just dissolve dead whale parts with their roots…by using acid. Acid…yep I said acid.  As if Osedax could get any more bad ass, I’m now thinking of the Alien queen.

New work suggests that the epidermal cells also express all kinds of proteinases, and enzyme that performs breaks down proteins by hydrolysis of peptide bonds.  In Osedax, 24 genes were found to code for just one type of proteinases, the MMP.  In the common fruit fly there are only two MMP genes and a common sea squirt just seven.  These epidermal cells also turn on a whole bunch of transporter genes suggesting they also uptake these nutrients just as well…like plant roots except you know some post-apocalyptic, weird animal-plant, zombie thing.

 

A rug that eats bones, has harems, and secretes acids but otherwise a normal shag rug.

I’ll leave you with this.  Thousands of bone-eating females will infest a whale carcass.  So many will accumulate the whale bones will appear to be covered in circa 1970’s red shag rug. A rug that eats bones, has harems, and secretes acids but otherwise a normal shag rug.

 

 

 

 

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Plea to save historic Otter Estuary docks - Exmouth Journal

Exmouth Journal

Plea to save historic Otter Estuary docks Exmouth Journal During the public consultation period into the FAB (France-Alderney-Budleigh) link, the Otter Valley Association (OVA) raised concerns about two historic quays in the Otter Estuary. The proposed estuary route of the cable would cut across the known ...

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$1M Grant Available for Hudson River Estuary Watershed - Hudson Valley News Network

$1M Grant Available for Hudson River Estuary Watershed Hudson Valley News Network HUDSON VALLEY – Approximately $1,000,000 in grant funding is available to help communities in the Hudson River Estuary watershed improve water quality, increase flood resiliency, and conserve natural resources, Department of Environmental ...

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Delaware Estuary Scientists Worried About Possible Trump Effect ... - NJ Spotlight

NJ Spotlight

Delaware Estuary Scientists Worried About Possible Trump Effect ... NJ Spotlight Scientists at regional summit clearly unnerved by Trump administration's announcements on climate change, fossil fuels, and the EPA. and more »

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Innovyze releases updated IWLive Pro software to aid utility decision-making

Wet infrastructure business analytics software provider Innovyze has launched its updated IWLive Pro software to support utility decision-making.

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EPA commences technology challenge for advanced septic system nitrogen sensor

The US EPA and its partners launched a technology challenge for an advanced septic system nitrogen sensor.

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Bluewater Bio secures contract for FilterClear technology from Severn Trent Water

Bluewater Bio Limited, a provider of treatment solutions to the water industry, has announced that Severn Trent Water, through its capital delivery partner Mott MacDonald Bentley (MMB), has chosen Bluewater's high rate multi-media filtration technol…

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Kayaking the Mangroves of the Golfo Dulce | The Costa Rica News - The Costa Rica News

The Costa Rica News

Kayaking the Mangroves of the Golfo Dulce | The Costa Rica News The Costa Rica News Kayaking on the Golfe Dulce and exploring the surrounding mangroves is one the top attractions in Puerto Jimenez, the biggest town of the Osa Peninsula. and more »

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Replace mangroves panel member: Bombay high court | Mumbai NYOOOZ - NYOOOZ

Replace mangroves panel member: Bombay high court | Mumbai NYOOOZ NYOOOZ "All grievances on destruction of mangroves in Navi Mumbai have been properly dealt with,'' it added.The bench, therefore, expressed surprise at Panditrao's suggestion and noted that the meeting was meant to implement the court orders. "The secretary ...

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Replace mangroves' panel member: Bombay high court - Times of India

Replace mangroves' panel member: Bombay high court Times of India A bench headed by Justice Abhay Oka was miffed that while the committee, constituted under an HC order, was doing an excellent job, its member secretary, Milind Panditrao, a divisional forest officer (mangrove cell), suggested at its January 10 meeting ... and more »

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A research cruise as depicted by a high-seas adventure cartoonist? YAAASSSS

[source: http://ift.tt/2jy3gU8]

It has now come to our attention that EVERY cruise needs a high seas adventure cartoonist. Lucy Bellwood’s comic on her three weeks at sea with the Schmidt Ocean Institute is just perfection. As the artist-at-residence on the R/V Falkor she describes the ship, the science and the techs/technology/scientists behind the science. And you will meet the Queen of the Multibeam.

Go to this site NOW.

http://ift.tt/2jnkZKY

Sincerely, SCIENCE.

WANT MOAR? Follow out Lucy on the twitters or even better, sponsor her on Patreon.

 

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Private Caribbean island could be yours for £400k on eBay - Daily Mail

Daily Mail

Private Caribbean island could be yours for £400k on eBay Daily Mail The caye's mangrove is a nature haven and the isle has coral reef that is perfect for snorkelling, dolphin spotting and bird watching. Miss Reed has reluctantly decided to sell Virginia Caye because she doesn't use it as often as she'd like and has ... and more »

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BFAR eyes more mangrove plantations in Masantol - Sun.Star

BFAR eyes more mangrove plantations in Masantol Sun.Star MASANTOL -- In a bid to further protect the coastal areas in this town, the Bureau of Fisheries and Aquatic Resources (BFAR) plans to plant more mangroves along the portion of the Pampanga River here. BFAR representative Arlyn Morales met Friday with ...

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Am I a Robot or am I a Plankter?

I just learned that the ocean robots I work with are taller than me. Since being insecure about size seems to be a thing now, I clearly need to surround myself by other which inflates alternative height bigly. This is why I NEED this navy of tiny ocean robots. 

Although I was hoping this robotic fleet was deployed for total ocean domination, their true goal was to pretend that they were plankton. Which means they have to act like a plankton. Some plankton are able to move around a little bit, but most of the time are just pushed about by water. For these robots to mimic the movements of plankton, the trick here was to make these Lagrangian floats follow a particular patch of water that is being pushed about by currents and waves. By deploying 16 robots, then you can see how these forces create the plankton patches that have been seen in the ocean.

A completely unrelated phytoplankton patch in the Bering Sea. BRING THE ROBOTS HERE!

Which is exactly what this tiny swarm did! And, be still my physical oceanographer heart, the robotic plankton patchiness was caused by internal waves. When the group was in the wave crest, they spread apart! When the group was in the wave through, they clumped together! Exactly as an internal wave should command them.

Let’s not forget the awesome tech that made this happen. Being able to follow a water blob isn’t easy. The robot needs to continually monitor its external surroundings and adjust its buoyancy to stay at a constant depth. And tracking the position of anything underwater? You need to do it with sound. Here they used an array of five sound sources around the swarm that talked to it with special acoustical pings. But to keep the robots small, they couldn’t answer back. They just listened and recorded a sequential round of pings from the sources, which was downloaded later. The location is then determined from the difference in time between when the five pings were transmitted and when they were received. This is some elegant signal processing people.

I only have one suggestion, you hand all the robots over to me and I call them Martini’s Tini Ocean Robot Navy. I shall appear tall, they shall remain small and together we shall drift over all.

REFERENCE

Jules S. Jaffe, Peter J. S. Franks, Paul L. D. Roberts, Diba Mirza, Curt Schurgers, Ryan Kastner & Adrien Boch. A swarm of autonomous miniature underwater robot drifters for exploring submesoscale ocean dynamics.Nat. Commun., 8. 14189 (2017) doi:10.1038/ncomms14189

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Earth's orbital variations, sea ice synch glacial periods

New research shows how sea ice growth in the Southern Hemisphere during certain orbital periods could control the pace of ice ages on Earth.

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Improving conservation in regional marine sanctuaries

A new study could benefit ocean zoning for coastal development plans and prove life-saving for foraging seabirds along the Central California coastline in the event of an oil spill.

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Webinar: Achieving Bioequivalence using Laser Diffraction and Automated Microscopy via Nebulizers

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New technique quickly predicts salt marsh vulnerability

Scientists who developed a rapid assessment technique for determining which US coastal salt marshes are most imperiled by erosion were surprised to find that all eight of the Atlantic and Pacific Coast marshes where they field-tested their method are losing ground. Four of the eight will be gone in 350 years if they don't recapture some lost terrain.

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Delaware Estuary scientists fear Trump actions will accelerate sea ... - StateImpact Pennsylvania

StateImpact Pennsylvania

Delaware Estuary scientists fear Trump actions will accelerate sea ... StateImpact Pennsylvania Scientists working to defend the mid-Atlantic coast from pollution, development, and sea-level rise fear they now have a new challenge: President Donald Trump ... and more »

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A crab's eye view of rising tides in a changing world

Coastal ecosystems and aquifers will be greatly affected by climate change, not only from rising temperatures and more volatile weather, including changes in precipitation patterns, but also from sea level rise.

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Haphazard growth, vanishing mangroves, traffic plague Dahisar | Mumbai NYOOOZ - NYOOOZ

Haphazard growth, vanishing mangroves, traffic plague Dahisar | Mumbai NYOOOZ NYOOOZ Summary: Ganpat Patil Nagar has come up by wiping out mangroves, said local inhabitants. They describe Ganpat Patil Nagar, a conglomerate of unauthorized hutments on Link Road, as a "monumental fraud". "Congress-Sena played a key role in allowing ...

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Haphazard growth, vanishing mangroves, traffic plague Dahisar - Times of India

Times of India

Haphazard growth, vanishing mangroves, traffic plague Dahisar Times of India Merciless slaughtering of mangroves is a major issue in Dahisar. Ganpat Patil Nagar has come up by wiping out mangroves, said local inhabitants. They describe Ganpat Patil Nagar, a conglomerate of unauthorized hutments on Link Road, as a "monumental ... and more »

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Illegal conversion of river, mangroves cutting in Zambo exposed - Sun.Star

Illegal conversion of river, mangroves cutting in Zambo exposed Sun.Star AN OFFICIAL of the Department of Environment and Natural Resources (DENR) has vowed to pursue charges against the people behind the illegal cutting of mangrove and conversion of a river into a fishpond in Zamboanga City. DENR Assistant Regional ...

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Duane Silverstein: mangrove conservationist - Geographical

Geographical

Duane Silverstein: mangrove conservationist Geographical Sri Lanka has become the first country in the world to protect all of its mangrove forests, and the first to open a mangrove museum. In the office we have been saying 'pinch yourself you must be dreaming' as the success in Sri Lanka has been beyond belief.

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Antarctic bottom waters freshening at unexpected rate

In the cold depths along the sea floor, Antarctic Bottom Waters are part of a global circulatory system, supplying oxygen-, carbon- and nutrient-rich waters to the world's oceans. Over the last decade, scientists have been monitoring changes in these waters. But a new study suggests these changes are themselves shifting in unexpected ways, with potentially significant consequences for the ocean and climate.

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Fight against the #EPAfreeze – Because you don’t want sewage on your beaches, right?

Would you want your taxi driver using a paper road map from 1892? Or would you rather he plug in the route on his Google Map iPhone app?

You just got off a 14-hour flight from Australia, you’re exhausted and sore, and counting down the seconds until you can crawl into the soft comfort of your memory foam mattress. You want to get home as fast as possible, and any further delay is unacceptable.

In this scenario, if your taxi driver pulled out a faded historical road map, you would literally shout at him “Are you fucking kidding me? Is this a joke?”. Old maps list wagon trails, not highways, since the modern interstate system wasn’t built until the 1950s. In another scenario, maybe your taxi driver agrees to use Google Maps, but he turns off the traffic settings and also takes away your own smartphone so you can’t see where you’re going. He might be driving down back roads on purpose, choosing to ramp up the mileage and ramp up his final fare to rake in the cash.

Any of these above scenarios would really suck. They’re not cool. You should DEFINITELY not stand for them. You also shouldn’t stand for the gag order (#EPAgag) and grants freeze (#EPAfreeze) that’s happening this week at the EPA – because the results will be sickeningly similar to the above taxi driver scenario.

NPR reports this morning that peer-reviewed research coming out of the EPA may soon face a case-by-case review before it gets cleared for release into the public domain. This is exactly what corporations do when they fund research – do you think tobacco companies would approve studies confirming that cigarettes cause cancer? Nope, they would bury the science and ensures it never sees the light of day – and that’s exactly what the Trump administration wants to happen at the EPA. Climate change facts? Bury them. Gag the scientists. The difference is that corporations don’t fund the science at the EPA – YOU FUND IT, as a taxpayer and US citizen, and you should have a say in how your tax money is spent:

Scientists at the Environmental Protection Agency who want to publish or present their scientific findings likely will need to have their work reviewed on a “case by case basis” before it can be disseminated, according to a spokesman for the agency’s transition team.

Any review would directly contradict the agency’s current scientific integrity policy, which was published in 2012. It prohibits “all EPA employees, including scientists, managers and other Agency leadership from suppressing, altering, or otherwise impeding the timely release of scientific findings or conclusions.”

The EPA funds a stunning amount of stuff that effects your everyday life – the EPA monitors beach health (so you can swim in a seweage-free ocean!), water quality in lakes and rivers (so you can fish there!), air quality (don’t wanna taste smog on your run, right?), and even programs on Native American reservations to help with initiatives like recycling and sustainability.

If you want to know what the EPA funds in your local area, 1) Click here and enter your ZIP code to find your congressional district, and then 2) Go to the EPA search tool and search for grants awarded to your congressional district (you only have to fill out two boxes – your district number and state). The list of EPA search results will show you exactly what type of projects and how much $$ has been allocated to your town in the past few years.

Finally, CALL YOUR CONGRESSPERSON AND SENATORS to let them know that the #EPAfreeze and #EPAgag is NOT OK! All us scientists at Deep-Sea News are steaming mad, and you should be too. Click here to find contact info for your state senator. And click here and type in your ZIP code for your local congressperson in the House of Representatives. Phone calls are the best way to get in touch – inundate their district and DC offices with phone calls. Phone calls are scary for me as a millennial, but then again so is that dodgy taxi driver who wants to take me home using unpaved wagon trails and historical maps. Make a stand, make your voice heard.

 

 

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Florida corals tell of cold spells and dust bowls past, foretell weather to come

Scientists seeking an oceanic counterpart to tree rings that record past weather on land found one in Dry Tortugas National Park, where corals contain chemical signals of past water temperatures. Researchers found coral core evidence that the 60- to 85-year-long cycle called the Atlantic Multidecadal Oscillation (AMO) has taken place since the 1730s, influencing mainland rainfall, droughts, hurricanes and Gulf Stream flows.

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CBA wants Marine Enhancement Center - The Northwest Florida Daily News

The Northwest Florida Daily News

CBA wants Marine Enhancement Center The Northwest Florida Daily News The CBA building plans are being rolled out even as Okaloosa and Walton counties jointly put finishing touches on an application for $2.2 million in BP dollars set aside to establish a Northwest Florida estuary program. If the two counties succeed in a ...

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National finalist: Gold award Water resources Shannon & Wilson - Seattle Daily Journal of Commerce (subscription)

National finalist: Gold award Water resources Shannon & Wilson Seattle Daily Journal of Commerce (subscription) The Washington Department of Fish and Wildlife partnered with Shannon & Wilson and Imco General Construction to provide a feasibility study, design and permitting, public outreach and construction of the Fir Island farm estuary. The project team ...

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Barrier-island migration drives large-scale marsh loss

Virginia's barrier islands are retreating up to 18 feet per year, with a resulting loss of at least 60 acres of saltmarsh annually, research concludes.

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Local author writes of Leigh's role in the Estuary - Leigh Times

Leigh Times

Local author writes of Leigh's role in the Estuary Leigh Times 'Estuary: Out from London to the Sea' traverses the psychic and physical geography of this stretch of the Thames, and has been an on-going project for many years. Rachel began work on the book in 2010, with an experimental cruise along the Estuary in a ...

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Kingsbridge Estuary Rotary Club supports forest school in East ... - South Hams Gazette

South Hams Gazette

Kingsbridge Estuary Rotary Club supports forest school in East ... South Hams Gazette PUPILS at East Allington Primary School are learning practical 'forest' skills with the help of a £250 donation from Kingsbridge Estuary Rotary Club. and more »

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Swarm of underwater robots mimics ocean life

Underwater robots offer scientists an extraordinary new tool to study ocean currents and the tiny creatures they transport. Swarms of these underwater robots helped answer some basic questions about the most abundant life forms in the ocean -- plankton.

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Itron to modernise Halifax water distribution system

US-based technology and services company Itron has entered into a contract with Halifax Regional Water Commission for modernising the utility’s water distribution system.

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From tiny phytoplankton to massive tuna

Phytoplankton are the foundation of ocean life, providing the energy that supports nearly all marine species. Levels of phytoplankton in an ocean area may seem like a good predictor for the amount of fish that can be caught there, but a new study finds that this relationship is not so straightforward.

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Bioinvasion is jeopardizing Mediterranean marine communities

Non-indigenous species are harming indigenous species and habitats in the Mediterranean Sea, impairing potentially exploitable marine resources and raising concern about human health issues, according to a new study.

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Capitol Lake update: Key environmental study comes next - The Olympian

The Olympian

Capitol Lake update: Key environmental study comes next The Olympian Although a solution to the lake-estuary debate is several years away, the committee is exploring multiple options: a restored estuary that would create a 500-foot opening at the Fifth Avenue Dam; a managed lake similar to today's scenario; a managed ...

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