A deep dive into the complexities of deep-sea mining, with Andrea Koschinsky

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A cnidarian (Relicanthus sp.) with 8-foot long tentacles attached to a dead sponge stalk on a manganese nodule in the eastern Clarion-Clipperton Zone. Credit: Diva Amon and Craig Smith.

The world’s growing population increases the already heavy demand on mineral resources on land, and so people are looking once more to the minerals found on the ocean floor, sometimes buried thousands of meters below the surface. The November 2018 issue of IEAM contains a critical review that explores the complexities of deep-sea mining, including the environmental, legal, economic, and societal impacts. In this episode we speak with lead author Andrea Koschinsky to learn more about this fascinating topic and the long road ahead to make it a reality.

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Finding balance: Resilience in ERA, with Marco Vighi and Andreu Rico

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Credit: Phil Loring, CC BY-NC-SA 3.0

The concept of resilience has been discussed in ecology since the 1970s, but practitioners are now applying the concept to improve accuracy and realism in ecological risk assessments. The September 2018 issue of IEAM features invited commentaries that discuss ecological resilience and what it means in practice for risk and impact assessments. Join us as we talk with authors Marco Vighi and Andreu Rico about how to incorporate resilience into ecological risk assessment, and the challenges and opportunities facing the regulatory community.

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What lies beneath: The fallout of biomobilization at the Hanford site, with Sara Lovtang

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Hanford Site, Washington, USA. Credit: Stacy James, US Fish and Wildlife Service.

Soil caps are a commonly employed technique in remediation efforts at contaminated sites. Once cleanup efforts are complete, however, plants and animals at these sites may inadvertently disrupt the best laid plans if not properly accounted for. In this episode we explore what happens when natural biota and processes kick in post remediation. We chat with Sara Lovtang, lead author on an IEAM article that defends the established depth of the biologically active zone at Hanford, a nuclear waste site that processed plutonium fuel during World War II at the height of its operations.

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You are what you eat: Microplastics in seafood, with David Santillo

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Plastic fish art installation, Nye Beach, Oregon. Credit: mmoca, CC BY-ND 2.0.

You are what you eat, or so you think. The next time you sit down to enjoy that bowl of cioppino or salmon fillet, you may be ingesting more than you realize. Plastic pollution is widespread in global waters, and microplastics—particles smaller than 5 mm—are being increasingly found in the most popular seafood items.

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Pulling it all together: Harmonizing marine environmental assessment, with Ruud Jongbloed

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Port of Tagonoura, Japan, with Mt. Fuji in the background. Credit: Hoshner Sigmaniax, CC BY-SA 2.0 (cropped and brightened from original).

Human activities and other pressures on marine ecosystems are ever increasing, underscoring the need for responsible, sustainable management. Several types of environmental assessment exist, but which is the most appropriate for your assessment needs? Enter CUMULEO, a framework that defines common EA elements and introduces consistency, while remaining adaptable to assessments for marine and other ecosystems. We chat with Ruud Jongbloed to get the highlights of CUMULEO. Access the critical review in the October 2016 issue of IEAM.

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Impaired Ecosystems: Ounce of Prevention or Pound of Cure? With Aida Farag & Ruth Hull

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Blackwater Wildife Refuge Wetlands Restoration Project, Maryland. Credit: Adam Lindquist, CC BY-NC 2.0.

Although many people confuse the terms remediation and restoration, they are two separate processes in the restoration of impaired ecosystems. A special series in the April 2016 issue of IEAM challenges practitioners and researchers to rethink the traditional linear, sequential process of ecological restoration, instead encouraging a collaborative approach along the way, to integrate restoration goals throughout the process, beginning with site assessment. Guest Editors Aida Farag and Ruth Hull discuss workshop findings and tell us why we should heed an ounce of prevention when restoring ecosystems. Access the series in the April 2016 issue of IEAM.

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Oil’s Well That Ends Well? Brock Bernstein Talks Rigs-To-Reefs and the Fate of Oil Platforms

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Oil platform, Santa Barbara, California. Credit: Berardo62, CC BY-SA 2.0.

The 27 oil and gas platforms off the southern California coast are aging quickly. What’s next for an oil rig once it reaches the end of its useful life? Deciding the fate of these massive hulks of steel and machinery is no simple feat, and this podcast highlights the efforts by a team of authors that set out to do exactly that.

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