Environment
Estimating water demand using price differences of wastewater services
Many homes in Hawai‘i use cesspools and other on-site disposal systems (OSDS) instead of the municipal sewer system. Because bills combine water and waste-water services, and homes with OSDS do not pay for sewer service, OSDS residences have lower monthly bills compared to those with sewer-connected systems. We use this price difference in conjunction with […]
Read MoreHow Will Climate Change Affect Water Demand? Evidence from Hawai‘i Microclimates
The effect that natural hazard resilience will have on water resource sustainability is gaining international interest, particularly in regions where stocks are strained due to changing climate and increasing populations. Past studies focus mainly on how water availability will be affected by natural hazard resilience, with little attention paid to how consumer behavior is likely […]
Read MoreCollaborative research to support urban agriculture in the face of change: The case of the Sumida watercress farm on O‘ahu
As urban areas expand around the world, there are growing efforts to restore and protect natural and agricultural systems for the multitude of ecosystem services they provide to urban communities. This study presents a researcher-farmer collaboration in a highly urbanized area of Oʻahu focused on understanding the historical and current challenges and opportunities faced by […]
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 MorePublication: Incorporating Historical Spring Discharge Protection Into Sustainable Groundwater Management: A Case Study From Pearl Harbor Aquifer, Hawai‘i
Groundwater management policy around the world increasingly seeks to protect groundwater-dependent ecosystems and associated human uses and values. This includes uses of ecosystems and agricultural systems linked to natural spring discharge. Yet, there are few examples of practical tools to balance human groundwater use with ecological water demand related to spring discharge. Using a simulation […]
Read MoreCoastal armoring and sinking property values: the case of seawalls in California
Rising sea levels necessitate careful consideration of different forms of coastal protection but cost-benefit analysis is limited when important non-market social costs have not been measured. Seawalls protect individual properties but can potentially impose negative externalities on neighboring properties via accelerated beach loss. We conduct a hedonic valuation of seawalls in two coastal California counties: […]
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 […]
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