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DaNel smiles and points to the scanning electron microscope aboard the JOIDES Resolution.This post was written by DaNel Hogan, Chief Learning Officer for the Waters Center for Systems Thinking and School of Rock October 2023 participant. 

Who knew a transit trip on the JOIDES Resolution would result in new found love? Joining Expedition 400T from Reykjavik to Amsterdam for School of Rock, an incredible program putting STEM educators like myself aboard this unique ocean drilling research vessel, resulted in a strong connection and new love. Perhaps it is not all that unlikely, as the ship does bring together a wide range of people with varying areas of expertise from around the world. These include folks who are experts in sailing a large 143-meter-long ship and drilling cores out of the ocean floor to those with STEM expertise from chemists to sedimentologists to engineers of all kinds and so many more. Still, I did not expect to find myself staring for hours at a new love interest—microfossils. That’s right! Sitting at a stereoscope for hours on end in search of various forms of microfossils turns out to be rather addicting. This is a particularly surprising turn of events for a physicist with a materials science research background to find herself intrigued by these tiny case studies in structure and function.

SEM image of the letters JR spelled out in foraminifera.
“JR” spelled out in foraminifera.

From the simple challenge of writing the letters “JR,” the initials for the ship JOIDES Resolution, on a scanning electron microscope (SEM) stub using foraminifera (a type of microfossil) to then searching for radiolaria (another type of microfossil that are even smaller), these remains of once living creatures are fascinating. The structure of some foraminifera look like the tiniest nautilus with spiral structure while others look like perfect spheres or conjoined spheres and still others look like complicated calcium carbonate vases, all built millions of years ago. The radiolaria, which are order of magnitude smaller than the foraminifera we were exploring, are yet another obsession easily magnified by their beautiful symmetry. How can so much structure be built into the test (the shell) of these creatures that are truly smaller than a grain of sand and by a one-celled animal? And how can anyone give them a single glance and not want to see and know even more?

SEM image of several radiolarians.
This SEM stub shows the structural variety of radiolaria.

Regardless of their design, microfossils play an incredibly important role when dating (determining the age of) sediment cores drilled out of the ocean. Sediment from the core catcher of each core drilled on the JOIDES Resolution is immediately handed off to a micropaleontologist who rushes to their lab aboard this ocean research vessel. Using their years of expertise and training to look for key species of microfossils within the sediment samples, the micropaleontologists’ observations allow them to determine the approximate date the 10-meter core was deposited on the ocean floor. A critical part of the carefully planned scientific expeditions aboard the JOIDES Resolution, determining the approximate core deposition dates using microfossils and other investigations of the core samples lead to a better understanding of Earth’s long history. And now you see why it is so easy to fall in love with the beautiful microfossil lifeforms that give us a way to peer into the past to determine what our planet was like millions of years ago.

Six SEM images of microfossils.
Examples of the diverse microfossils DaNel encountered in her sample.

A Physicist Falls in Love

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Ocean Acidification

Plastic Pollution’s Toll on Seabirds

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This blog was co-written by Dan Berkson and Hannah De Frond. Hannah works with Ocean Conservancy and the University of Toronto Trash Team to manage the International Trash Trap Network (ITTN), a global network of local groups using trash traps to increase cleanup efforts, engage communities and inform upstream solutions.

Plastic pollution devastates our ocean, and its impact on marine wildlife—especially seabirds—is severe and far-reaching. Seabirds breed on land but search for food at sea, bringing them into frequent contact with plastic pollution accumulating both along shores and in surface waters worldwide. Unfortunately, ingesting plastics can prove to be deadly for these amazing animals.

Eating plastics for seabirds can obstruct their digestive systems, preventing them from eating actual food, and leading to starvation. Sometimes it takes only one piece of plastic to block the passage of food. Plastic ingestion has been found in every family of seabird. Below are details on how some species are uniquely impacted by plastic pollution.

Seabirds Northern Fulmar

Seabirds Laysan Albatross

  • Petrel: More than 50% of petrel species are listed as “threatened” or “near threatened” by the International Union for Conservation of Nature (IUCN). Petrels often inhabit areas with high concentrations of plastic pollution such as the high seas and mid-ocean gyres. Unlike other seabirds, they struggle to regurgitate plastic. This means the plastics they ingest tend to remain in their bodies for extended periods. 
Seabirds Petrel

What can you do?

If we fail to take action, studies predict that 99% of seabird species will ingest plastic by 2050, which is devasting given how vulnerable seabirds are to even the smallest amount of plastic. Ocean Conservancy is committed to protecting our ocean, wildlife and communities from plastic pollution. But we can’t do it alone. Here is how you can join the fight: 

  • Reduce plastic use: To tackle our plastic pollution crisis, we need to use less plastic. We can each do our part by avoiding single-use plastics where possible in our daily lives from carrying a reusable water bottle and bag to skipping a straw. These small actions add up and collectively reduce the amount of plastic waste we create, while sending a clear signal to plastic producers that we are fed up with single-use plastics. 
  • Clean up plastic pollution before it enters the ocean: Cleaning up plastic waste, whether on the beach, along a river, or in your neighborhood park, helps eliminate the likelihood that it will later be consumed by seabirds or other marine life. One of the best ways to do this is by joining the International Coastal Cleanup® (ICC). Use our map to find a coordinator planning a cleanup in your region. Want something closer to home? Team up with friends and family to clean up your favorite beach or beloved park. If you see plastic on beaches, shores or elsewhere, remember to clean it up—it could save a seabird’s life.

The post Plastic Pollution’s Toll on Seabirds appeared first on Ocean Conservancy.

Plastic Pollution’s Toll on Seabirds

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Ocean Acidification

Learnings from the National Working Waterfronts Networks Conference

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I recently represented Ocean Conservancy at the National Working Waterfronts Network Conference in San Diego. The conference brought together maritime industry leaders, policymakers and community advocates, all working toward a shared vision for the future of our waterfronts.

As an engineer, former mariner and ocean conservationist I know that decarbonizing our ports requires cross-sector partnerships. The discussions throughout the National Working Waterfronts Network Conference reinforced how essential it is to bring together experts from engineering, policy and workforce development to drive meaningful change towards port decarbonization.

Throughout the conference, I discussed the need for a comprehensive, systems-level approach that integrates infrastructure investment, regulatory alignment and workforce development. Preparing the workforce for decarbonization is just as crucial as deploying zero-emission technologies. Investments in training programs and workforce development initiatives will equip maritime professionals with the expertise needed for the next generation of sustainable shipping. Collaboration among industry, government and educational institutions should also be used to create comprehensive training programs that align with emerging port technologies and regulatory requirements.

WOLF electric tug

Another highlight of the conference was seeing the eWolf. Designed by the marine company Cowley, the eWolf is the first fully electric tug in the United States. This cutting-edge vessel is 82 feet long and has a 70-ton bollard pull. It is powered by a 6-megawatt-hour battery system that eliminates emissions, equipped with onboard energy management systems to optimize power use and fitted with azimuth thrusters for enhanced maneuverability. This vessel drastically reduces harmful pollutants like nitrogen oxides, sulfur oxides and particulate matter, improving air quality for nearby communities while maintaining the performance required for commercial operations. It takes bold industry players like Crowley to lead the way toward port decarbonization—and, let’s be honest, eWolf is just a cool name.

WOLF electric tug

I left the National Working Waterfronts Network Conference with a deeper appreciation for the professionals working to ensure our waterfronts remain vibrant, resilient and sustainable. The challenge ahead is clear: How do we scale these innovations while maintaining the economic viability of our ports and coastal industries?

The answer lies in open collaboration among industry leaders, policymakers and communities, accelerated adoption of zero-emission technologies, strategic investments in clean-energy infrastructure and bold decision-making prioritizing sustainability and economic growth. That’s why Ocean Conservancy is spearheading projects like the Green Ports Interactive Funding Tracker—an innovative resource that aims to empower port authorities, environmental managers and sustainability experts by providing real-time updates and comprehensive insights into available funding.

Now is the time to turn conversations into action. Ocean Conservancy is committed to working alongside partners across the maritime industry to drive a cleaner, more sustainable future. Take action now to help Ocean Conservancy address today’s biggest threats to our ocean, including the climate crisis and plastic pollution.

The post Learnings from the National Working Waterfronts Networks Conference appeared first on Ocean Conservancy.

Learnings from the National Working Waterfronts Networks Conference

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Ocean Acidification

The Truth About Plastic Fragments

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This blog was written by Hannah De Frond. Hannah works with Ocean Conservancy and the University of Toronto Trash Team to manage the International Trash Trap Network (ITTN), a global network of local groups using trash traps to increase cleanup efforts, engage communities and inform upstream solutions.

During coastal cleanup events, no matter where you are in the world, chances are you’ll encounter plastic items like bottles, bottle caps, straws and packaging. However, plastic fragments that are smaller and more difficult to see may be difficult to see within the sand or soil.

Plastic fragments are small hard pieces of plastic, typically formed as larger plastic items that break up in the environment. As plastics are exposed to sunlight, waves and winds, they become brittle, crack and break into pieces. With each item of plastic that enters the environment, there is the potential for it to break into hundreds or even thousands of fragments. Due to its small, lightweight nature, each fragment moves differently in the environment and can have a totally different fate. Some fragments get washed into the ocean and float on the surface or sink to the ocean floor, some become buried in a sandy beach, and some are blown further afield with strong winds.

Plastic fragments are found in many environments, including lakes, rivers, terrestrial sediments and coastal marine environments. Plastic fragments are removed each year in the “tiny trash” collected during Ocean Conservancy’s International Coastal Cleanup®. They are among the top 10 items reported by groups in the International Trash Trap Network, an initiative co-led by Ocean Conservancy and the University of Toronto Trash Team, using technologies to clean up our waterways. 

One study in Brazil found 2,661 fragments in a 100-meter section of beach. Plastic fragments are also frequently reported in studies of plastic ingestion by wildlife such as fishseabirds and turtles. Ingested plastic fragments can cause tissue damage and inflammation and can concentrate harmful chemical pollutants which have the potential to leach out inside the gut, negatively impacting animal health. 

Just like other large plastic items, plastic fragments also undergo environmental weathering which causes them to break apart into even smaller pieces—microplastics (<5mm) and eventually into nanoplastics (<100nm). These micro- and nano-sized fragments are frequently found in the environment and, due to their size, are easily ingested by wildlife. One analysis of scientific research to date revealed that fragments are ingested by 19% of fish globally


To reduce plastic fragment pollution, we need to tackle the problem at the source by reducing the production and use of larger plastic items, like single-use plastics, from which fragments are generated. This includes commonly used polluting items like plastic bottles, straws, food containers, cups and plates. By reducing our plastic waste, reusing as much as possible and recycling when possible, we can, collectively, have a huge impact.

Both Ocean Conservancy and the University of Toronto are deeply committed to ridding our ocean and planet of insidious and harmful plastic pollution through efforts like the International Trash Trap Network and the International Coastal Cleanup. Please join us in ensuring that our ocean and waterways are not overrun by microplastics or any form of plastic pollution.

The post The Truth About Plastic Fragments appeared first on Ocean Conservancy.

The Truth About Plastic Fragments

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