Conrad Newfield
Enduring Impacts of the November 2021 Red Hill Fuel Spill: Health, Social, Economic, and Trust Implications
This report presents findings from a follow-up survey conducted in July 2023—about 20 months after the Red Hill water contamination—with 174 people who had participated in earlier CDC/ATSDR studies. The study examines how the disaster affected participants’ health, daily life, finances, and trust in government agencies. Results indicate ongoing challenges, including physical and mental health […]
Read MoreCost-Effective Invasive Species Management: Biocontrol in Hawaiʻi Delivers High Return on Investment
By Conrad Newfield, Christopher Wada, and Kimberly Burnett Read the full report. Growing Threats to Hawaiʻi’s Forests and Industries Hawaiʻi’s native ecosystems and agricultural economy are under threat from invasive species. Each year, an average of 20 alien insects and 100 alien plant species arrive in the islands. This long and growing list of invasive […]
Read MoreEconomic Benefits and Costs of Biological Control: Coffee Berry Borer, Erythrina Gall Wasp, and Fireweed in Hawai‘i
This report evaluates the economic costs and benefits associated with biological control efforts targeting three invasive species in Hawai‘i: coffee berry borer (CBB, Hypothenemus hampei), erythrina gall wasp (EGW, Quadrastichus erythrinae), and fireweed (Senecio madagascariensis). Utilizing historical data, expert interviews, and cost-benefit analyses, the study quantifies potential economic impacts and returns on investment (ROI) for […]
Read MoreWatershed Protection Provides Strong Return on Investment on Kaua‘i
By Conrad Newfield, Nathan DeMaagd, Christopher Wada, Kimberly Burnett, and Leah Bremer Read the full report. Kaua‘i’s native forests play a vital role in sustaining the island’s freshwater resources. These biodiverse ecosystems capture rainfall and fog, allowing water to seep into underground aquifers, which serve as the primary source of drinking water. However, the expansion […]
Read MoreReturn on investment for watershed protection on Kaua‘i
Native forests provide many societal benefits, including protecting freshwater resources that provide drinking water and sustain culturally, economically, and ecologically valuable springs, streams, and groundwater dependent ecosystems. The objectives of this report are to: (1) model future management scenarios for Kaua‘i’s native forests that are co-developed with The Nature Conservancy (TNC) to quantify the impact […]
Read MoreConsiderations for understanding water availability in West Maui
This piece intends to highlight some of the inherent tradeoffs that make managing water in West Maui especially challenging. In particular, subtracting current/authorized use from “sustainable yield” as defined by the State Water Code and interpreted by CWRM may not be a reliable way to determine remaining water resources available for use. We hope summarizing […]
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