Environment
Solving Optimal Groundwater Problems with Excel
Abstract: Welfare maximizing management of coastal groundwater requires a sequence of pumping targets, typically terminating with a constant withdrawal rate in the long run. In contrast, managing according to sustainable yield at best identifies the constant rate of pumping in the long run. We illustrate an accessible solution method, using Excel Solver to find the […]
Read MoreLinking climate, forests, and limu: Examining the influence of environmental change on groundwater dependent ecosystems in Kona
By Leah Bremer, Brytne Okuhata, Jade Delevaux, Angela Richards Doná, Celia Smith, Veronica Gibson, Henrietta Dulai, Aly El Kadi, Kosta Stamoulis, Kimberly Burnett, Christopher Wada Summary: Natural hazard resilience and increased groundwater pumping are likely to increase the habitat suitability of an invasive seaweed and decrease the abundance of a native and culturally important limu […]
Read MoreEffects of Multiple Drivers of Environmental Change on Native and Invasive Macroalgae in Nearshore Groundwater Dependent Ecosystems
New UHERO Environment and collaborator publication in Water Resources Research demonstrates the connections between forest management, groundwater pumping, natural hazard resilience and nearshore groundwater dependent ecosystems in Kona, Hawaiʻi. Abstract: Groundwater dependent ecosystems (GDE) are increasingly recognized as critical components of sustainable groundwater management, but are threatened by multiple drivers of environmental change. Despite this […]
Read MoreManaging retreat for sandy beach areas under sea level rise
Abstract: Sea level rise (SLR) is projected to impact approximately one billion people by 2100. For many coastal communities, retreat is the most viable long-term option due to exposure risk under SLR and increased coastal hazards. Our research analyzes the costs of retreating coastal development at an iconic beach in Hawaiʻi that is experiencing severe […]
Read MoreFrontiers in páramo water resources research: A multidisciplinary assessment
Abstract: Interdisciplinary knowledge is necessary to achieve sustainable management of natural resources. However, research is still often developed in an exclusively disciplinary manner, hampering the capacity to holistically address environmental issues. This study focuses on páramo, a group of high-elevation ecosystems situated around ∼3000 to ∼5000 m a.s.l. in the Andes from western Venezuela and […]
Read MoreFifth time’s a charm!
By John Lynham PhD student Adrian Amaya and UHERO Research Fellow John Lynham recently started working on a new NSF-funded $1.6 million project entitled “Pathways and constraints to adaptation in coastal social-environmental systems”. The project is a collaborative research endeavor, both across institutions and academic disciplines: it brings together marine biologists, oceanographers, economists, anthropologists, and […]
Read MoreWhat’s a (Better) Beach Day Worth? Economic Valuation of Changes in Waikīkī Beach Characteristics
Abstract: Whether beach nourishment, an established beach management measure, is justified depends on its benefits and costs. We apply a discrete choice experiment at Waikīkī Beach on Oʻahu with mixed logit and latent class models to evaluate recreationists’ willingness to pay for changes in beach width and water clarity as well as the preferences for […]
Read MorePuʻulani: Biocultural restoration of agroforestry in Heʻeia, Oʻahu
By Leah Bremer, Zoe Hastings, Maile Wong, and Tamara Ticktin Puʻulani (heavenly ridge) sits above the loʻi kalo (taro patches) that Kākoʻo ʻŌiwi, a community-based organization in Heʻeia, Oʻahu, has been actively restoring since 2010. Just five years ago, in 2018, 100% of the trees at Puʻulani were non-native species. Since then, a partnership between […]
Read MoreTime for A Carbon Tax for Hawaii?
By James Mak and Erik Haites Hawaii’s constitution requires a Tax Review Commission (TRC) be appointed every five years to review the state’s tax/revenue system. Commissioners comprise of tax experts in the state and serve without compensation. In its final report to the Legislature, the 2020-2022 Tax Review Commission’s top recommendation is a carbon tax […]
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