Tracking phosphorus in aquaculture: Identifying losses and potential for recycling

Phosphorus (P) scarcity is the subject of
considerable research and debate. P studies, however, have yet to include the aquaculture and fisheries sectors, thus eliminating the possibility of assessing their relative importance and identifying opportunities for recycling. A recent study looks at flows of phosphorus in fisheries, aquaculture, and agriculture in Norway.
Results indicate that, contrary to most other countries where agriculture dominates, in Norway, aquaculture and agriculture drive P consumption and losses. This suggests that there are opportunities P recycling across sectors that could help address the mineral P demands of agriculture.

The research also illustrates the value of material flow analysis and systems perspectives that are at the heart of industrial ecology.  See the article in Yale F&ES’s Journal of Industrial Ecology at

Call for Papers: Exploring the Circular Economy

Is industrial ecology the science of the circular economy?

In “Strategies for Manufacturing,” the seminal article in 1989 that is often identified as marking the beginning of industrial ecology as a research field, Robert Frosch and Nicholas Gallopolous (1989) analogized industrial ecosystems to biological ecosystems.  The set of ideas based on an ecological analogy in varying degrees and forms has been examined, elaborated and increasingly adopted in many guises.  Most recently, the circular economy has captured the imagination of many in the environmental world. China enacted a law for the promotion of the circular economy in 2008, the Ellen MacArthur Foundation has played a pivotal role in engaging the business community, and the European Union is formulating a circular economy strategy as a socio-economically promising means to achieve resource…

Commitment, Distraction or Green Fluff? Debating Science-based Corporate Carbon Targets

The environmental movement has always been plagued by the half-a-loaf problem. Is it better to accept a partial solution to an environmental threat with the possibility that the solution will be the sum total of what is achieved? Or should the partial serving be rejected with the opposite possibility that no progress will be made?

This conundrum plays out in a debate in the Journal of Industrial Ecology over science-based carbon targets for business. In “Science-Based Carbon Targets for the Corporate World: The Ultimate Sustainability Commitment, or a Costly Distraction?” two leading voices on corporate sustainability take aim at emerging calls for a move away from arbitrary goals for corporate reduction of greenhouse gases (GHGs). In this approach, companies cut their emissions using targets defined based on a global…

F&ES Explores the Caribbean

This spring break, I traveled to St. Thomas in the US Virgin Islands for the course FES 729b: Caribbean Coastal Development: Cesium and CZM taught by faculty members Gaboury Benoit and Mary Beth Decker.

National Geographic: F&ES Grad Discusses China's Role in the Ivory Trade

Before graduating from F&ES last month, Gao Yufang M.E.Sc. ’14 focused his studies on the global ivory trade, with an emphasis on the complex role of his native China.

Gao — who will return to China this month, along with two African conservationists, to explore the country’s ivory markets — recently spoke with National Geographic about the complexities of the ivory market and the role of young people in curbing the slaughter of Africa’s elephants.

He also talks about why he decided to focus on this issue in the first place.

When I came to Yale in September 2012, everyone was talking about ivory trade. As a Chinese in the U.S. who understood how the conservation community in China works, I was seeing a great gap…

Spring Break on St. Thomas: A Look at Caribbean Coastal Development

Over spring break, Prof. Gaboury Benoit’s Coastal Caribbean Development class traveled to St. Thomas in the U.S. Virgin Islands to study firsthand the impacts and processes of coastal development. St. Thomas presents an interesting case study for tourism and development due to its high volume of tourists, limited resources, and vulnerability to hurricanes and climate change.

St. Thomas has an interesting history and culture. Originally owned by the English and then the Danish, it served as an important center for shipping and sugar cane production. After about 100 years as an independent port, the U.S. government purchased the island for strategic purposes during the First World War. Since then, it has remained a U.S. territory. However, the culture of the island is far from homogenous. From its time as…

Gender Equality through Disaster & Climate Change Readiness: from Policy to Practice

Right now marks the middle of the 58th Commission on the Status of Women (CSW) in New York City, the annual taking-stock of Millennium Development Goals as they relate to successes, challenges, and progress for women and girls around the globe. Like many UN events, the annual CSW is two weeks of prepared statements, panel discussions, and working group meetings packed with lofty and generalized language, seemingly perfectly designed to simultaneously aggravate and bore participants.

Last Thursday I was a participant in that process. I spoke at a CSW parallel event put on by the Tzu Chi Foundation, a humanitarian disaster relief organization. I presented on the state of gender equality through a climate change adaptation and disaster risk reduction lens, from my perspective as a junior researcher…

Hydraulic Fracking Panel TOMORROW!

Just a reminder that the hydraulic fracking panel is tomorrow, September 18, 2012 at 4pm eastern. This is going to be an incredible event. Be sure to visit us on campus or tune in via livestream.

You can access the live stream of the event here: and more information about the event here: This link also contains a question box for you to submit questions to be answered by the panelists.

Have fun!…

Professor Chertow's greetings from China!

Associate Professor of Industrial Environmental Management, Director of Program on Solid Waste Policy, and Director of Industrial Environmental Management Program, Marian Chertow writes:

Just thought I’d send a quick message from Tianjin, China where I am attending the World Economic Forum’s “Summer Davos” meeting held in China each year. I was invited to present on the Circular Economy which springs from industrial ecology principles. We had a two hour highly interactive session replete with an artist who drew pictures while we spoke and took very colorful notes. All the IE students should enjoy the artist’s view of life cycle thinking – see below. The theme of the overall meeting is “Creating the Future Economy.” I have attended several sessions related to resource management, consumption, and China’s role in the…