Human activities create threats that have consequences for freshwater ecosystems and, in most watersheds, observed ecological responses are the result of complex interactions among multiple threats and their associated ecological alterations. Here we discuss the value of considering multiple threats in research and management, offer suggestions for filling knowledge gaps, and provide guidance for addressing the urgent management challenges posed by multiple threats in freshwater ecosystems.
Authors: Laura Craig, Julian Olden, Angela Arthington, Sally Entrekin, Charles Hawkins, John Kelly, Theodore Kennedy, Bryan Maitland, Emma Rosi, Allison Roy, David Strayer, Jennifer Tank, Amie West and Matthew Wooten
Team Members: Sydney Forrester, Yide Gu, Usmaan Jaffer, Tim Yuan, Ziyang Zhong
Advisor: Dr. Kazuhiro Saitou
Team Members: Michael Amidon, Ashish Bhandari, Olaia Chivite Amigo, Laura Devine, Kayla Hunter, Jiayang Li, Erika Linenfelser, Bruna De Souza Oewel, Yao Tang
Advisor: Dr. María Arquero de Alarcón & Dr. Ana Paula Pimentel Walker
Team Members: Shivani Kamodia, Annabel Weiner Advisor: Dr. Zach Landis-Lewis
A Dow Sustainability Fellows team presented to the Ann Arbor Area Transportation Authority (AAATA) the financial, social, and environmental merits of offering subsidized ride-hail services to residents in areas that cannot be efficiently covered by buses. The team proposed a subsidized ride-hail service, FlexBus. While the research, design, and analysis of this report were conducted specifically for the AAATA, the team expects the information and insight will be broadly applicable to any transit agency considering on-demand ride-hailing.
Keywords: Ride sharing, hailing, transportation, subsidized
This project set out to understand key barriers to expanding compost programs in Ann Arbor, and to identify best practices to support the city in expanding these programs most effectively.
Ann Arbor’s composting facility, operated by WeCare Organics, has the capacity to expand composting to all current residents and businesses. However, if service were to be expanded to all households, the current mechanism for financing city composting programs is not sustainable. Under its current millage system, the city’s financing structure for composting does not facilitate opportunities for increased revenues. Additionally, low land ll tipping fees, challenges with the city Material Recovery Facility (MRF), and funding restrictions have further hindered the expansion of services.
Keywords: Composing, waste management, solid waste system, zero waste
Oroeco, a website and application-based service that allows users to track the climate impacts of their everyday decisions, recently launched a beta version of a new, interactive social platform that features sustainability ratings of individual publicly-traded companies. The Dow Sustainability Fellows team worked with Oroeco to develop a go-to-market strategy and improve the beta version of the platform. The goal of the platform is to promote sustainable corporate practices and to unlock more informed decision- making by mobilizing the interests of a range of stakeholders, including consumers, investors, and experts (including scholars and non-governmental organizations).
Keywords: Information management, carbon footprint, behavior, decision-making, climate impact assessment
Like many post-industrial cities, Detroit has an outdated and overburdened combined sewer system. In a combined sewer system, heavy rains overwhelm the city’s water treatment system, resulting in increased flooding and discharges of both sewage and stormwater into local rivers. In order to reduce combined sewer overflows (CSO), stormwater must enter the sewer system at a slower and steadier pace without high peaks caused by heavy rain events. In addition, Detroit has vast amounts of impervious surface, much of which is abandoned or underused, further contributing to stormwater runoff concerns.
Our project, in collaboration with Michigan Community Resources (MCR) and Eastside Community Network (ECN), explores whether a collective, place-based approach to green stormwater infrastructure (GSI) installations can result in joint stormwater credits towards fees in residential neighborhoods.
Soy production has led to deforestation in multiple regions of Brazil, including the states of Mato Grosso and Pará. A combination of laws, such as the Forest Code (1965), and voluntary agreements, such as the Soy Moratorium (2006), have been implemented to slow the rate of deforestation due to soy production in the Amazon. Although the overall deforestation rate has declined in Brazil from 2004 to 2013, it has increased along the BR-163 highway, also known as the “Soy Corridor.”
Keywords: agro-industrialization, soy, deforestation, Brazil, Mato Grosso and Para region, rainforest