Blog: Identifying wastewater management tradeoffs: costs, nearshore water quality, and implications for marine coastal ecosystems in Kona, Hawai’i
By Christopher A. Wada, Kimberly M. Burnett , Brytne K. Okuhata, Jade M. S. Delevaux, Henrietta Dulai, Aly I. El-Kadi, Veronica Gibson, Celia Smith, Leah L. Bremer An interdisciplinary team from UHERO, the Water Resources Research Center, Dept. of Earth Sciences, and the Dept. of Botany recently published new scientific results in the journal PLOS […]
Read MoreGroundwater management for people and ecosystems under a changing climate: Insights from the Puʻuloa aquifer
By Leah Bremer, Ahmed Elshall, Christopher Wada, Laura Brewington, Jade Delevaux, Aly El-Kadi, Clifford Voss, and Kimberly Burnett Summary:New research from the University of Hawaiʻi ʻIke Wai project indicates that current legal limits on withdrawals from the Puʻuloa (Pearl Harbor) aquifer, the primary water source for Oʻahu, are not sufficient to protect this important resource. […]
Read MoreThe Agricultural Economic Landscape in Hawai‘i and the Potential for Future Economic Viability
By Sarah Rehkamp, Michael J. Roberts, and James M. MacDonald In a recent UHERO policy brief, Reviving Agriculture to Diversify Hawai‘i’s Economy, authors pointed to trends in Hawai‘i agriculture and state policies surrounding agricultural land management (La Croix & Mak, 2021). Hawai‘i’s agricultural history has centered around the pineapple and sugar plantations and these are […]
Read MoreLinking Land and Water Management to Culturally and Ecologically Important Groundwater Dependent Ecosystems
Groundwater Dependent Ecosystems (GDEs) are ecosystems which rely on groundwater. In Kona, Hawaiʻi coastal GDEs include: fish ponds (loko iʻa), anchialine pools, and nearshore ecosystems. Communities and agencies are working to restore and protect these ecosystems for their linked cultural and ecological values, and seek information on the interacting impacts of wastewater management, urban development, […]
Read MoreCharging Higher User Fees to Tourists at Hawaii’s State Parks
By James Mak “Ua mau ke ea o ka aina i ka pono” [1] In May 2000 the Hawaii Department of Land and Natural Resources (DLNR) Division of State Parks began to charge $1 entrance fee per adult—tourist and local—who walked into the park to hike the iconic Diamond Head trail. A $5 entrance fee per […]
Read MoreProject Description: Spatial Planning to Inform Expansion of Agroforestry for Cultural, Ecological & Economic Benefits
Agroforestry systems, along with loʻi kalo and other systems, were abundant in traditional Hawaiʻi, and there is great interest in their restoration today. This project aims to improve understanding of current agroforestry systems and evaluate the costs and benefits of expanding restoration.
Read MoreRooftop solar is now competitive with utility-scale power in Hawaiʻi
By Michael Roberts We need to transition away from fossil fuels quickly, and with inexpensive renewables and batteries, we can do so in a cost effective manner, so long as we employ a sensible plan and the right policies. But what are the tradeoffs involved with how we do it? In most places, rooftop solar […]
Read MoreEconomic benefits of hydrologic services from watershed protection and restoration
Watershed protection and restoration provide a range of benefits including clean and ample water supplies, biodiversity, cultural connection to place, carbon sequestration, and a suite of other ecosystem services. Research by UHERO’s Environmental Policy and Planning Group demonstrates the economic benefits of native forest protection and restoration for groundwater recharge, pointing to the value of […]
Read MoreIncorporating Historical Spring Discharge Protection into Sustainable Groundwater Management: A Case Study from Pearl Harbor Aquifer, Hawai‘i
By Kimberly Burnett, Ahmed Elshall, Christopher Wada, Aida Arik, Aly El-Kadi, Clifford Voss, Jade Delevaux, and Leah Bremer The value of considering a range of diverse benefits is particularly salient in geographically isolated areas like the Hawaiian Islands, where judicious management of limited local freshwater resources is essential to sustaining the wellbeing of residents and […]
Read MoreMountain to sea resource management to protect groundwater dependent ecosystems
By Christopher Wada, Kimberly Burnett, and Sittidaj Ponkijvorasin In Hawai‘i and other parts of the world, native forest and valuable linked natural resources are being threatened by forces including land use change, invasive species, and climate change. Management strategies for protecting these resources are commonly divided into two categories: (1) active restoration where interventions such as […]
Read MorePositive net benefits for an agricultural import rule designed to protect native Hawaiian forests
Photo by Forest & Kim Starr By Kimberly Burnett and Christopher Wada Since its first documented introduction to Hawai‘i in 2005, the rust fungus Puccinia psidii has already severely damaged Syzygium jambos (Indian rose apple) trees and the federally endangered Eugenia koolauensis (nioi). Fortunately, the particular strain has yet to cause serious damage to Metrosideros polymorpha (‘ōhi‘a), which comprises roughly 80% of the […]
Read MoreWho are we measuring and modeling for? Supporting real-world watershed management
By Leah Bremer and Kate Brauman (In Press at the Global Water Forum) Watershed management programs that promote land management like reforestation, conservation, and lower-intensity grazing to enhance clean and ample water supplies downstream are becoming more common around the world. To achieve their water goals, they often need hydrologic information, usually generated through field measurements and hydrologic models. However, hard work by the hydrologic community […]
Read MoreForest protection provides important cost savings to water utility on Maui
By Leah Bremer Researchers from the University of Hawaiʻi Economic Research Organization and Water Resources Research Center partnered with the Nature Conservancy of Hawaiʻi to evaluate how native forest conservation contributes to local water supplies in a water stressed area in East Maui. They found that by preventing the degradation of native forest, conservation efforts […]
Read MoreBiocultural Restoration Workday Draws Community Together to Plant an Agroforest
By Zoe Hastings, Mahealani Botelho, and Leah Bremer 1 “I ola ʽoe, i ola mākou nei.” A community member recites the pule (blessing), “my life is dependent on yours, your life is dependent on mine”, to a native aʽaʽliʽi shrub as she gently tucks them into the ground. The side of the ridge is a […]
Read MoreVog: Using Volcanic Eruptions to Estimate the Health Costs of Particulate
By Tim Halliday, John Lynham, and Aureo de Paula Since its inception, the Environmental Protection Agency (EPA) in the United States has proven itself to be effective at reducing air pollution. For the six ‘criteria’ pollutants that the EPA is mandated to regulate, emissions of all six have declined substantially. Particulates have declined by 38% […]
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