Publication: Joint Management of an Interconnected Coastal Aquifer and Invasive Tree
Kiawe (Prosopis pallida), a mesquite tree considered invasive in many parts of the world including Hawai’i, has been shown to reduce regional groundwater levels via deep taproots. In areas where aquifers are primary sources of fresh water, kiawe control has the potential to be an integral component of water management planning. We develop an analytical […]
Read MoreRapid and lasting gains from solving illegal fishing
Perhaps the greatest challenge facing global fisheries is that recovery often requires substantial short-term reductions in fishing effort, catches and profits. These costs can be onerous and are borne in the present; thus, many countries are unwilling to undertake such socially and politically unpopular actions. We argue that many nations can recover their fisheries while avoiding these […]
Read MoreA Linked Land-Sea Modeling Framework to Inform Ridge-to-Reef Management in High Oceanic Islands
Declining natural resources have led to a cultural renaissance across the Pacific that seeks to revive customary ridge-to-reef management approaches to protect freshwater and restore abundant coral reef fisheries. Effective ridge-to-reef management requires improved understanding of land-sea linkages and decision-support tools to simultaneously evaluate the effects of terrestrial and marine drivers on coral reefs, mediated […]
Read MoreBringing multiple values to the table: assessing future land-use and climate change in North Kona, Hawai‘i
As ecosystem service assessments increasingly contribute to decisions about managing Earth’s lands and waters, there is a growing need to understand the diverse ways that people use and value landscapes. However, these assessments rarely incorporate the value of landscapes to communities with strong cultural and generational ties to place, precluding inclusion of these values—alongside others—into […]
Read MoreDoes the Allocation of Property Rights Matter in the Commons?
A popular solution to the Tragedy of the Commons is to create private property rights to access the commons. If resource users care about equity, they may be unwilling to respect property rights regimes that lead to less equitable outcomes. We explore in a series of laboratory experiments whether it is possible to undermine the efficiency of property rights […]
Read MoreA Scoping Study for Climate Action Planning in Kauaʻi
This report documents best practices for county-level climate action plans (CAPs), with considerations for Kaua‘i. A CAP is primarily a process by which a jurisdiction agrees upon greenhouse gas (GHG) reduction strategies and policies. This report is based on the gathering of studies and protocols addressing climate action planning and GHG mitigation best practices.
Read MoreJoint Management of an Interconnected Coastal Aquifer and Invasive Tree
Kiawe (Prosopis pallida), a mesquite tree considered invasive in many parts of the world including Hawai‘i, has been shown to reduce regional groundwater levels via deep taproots. In areas where aquifers are primary sources of fresh water, kiawe control has the potential to be an integral component of water management planning. We develop an analytical […]
Read MoreEstimating Cost-Effectiveness of Hawaiian Dry Forest Restoration Using Spatial Changes in Water Yield and Landscape Flammability Under Climate Change
Resource managers increasingly seek to implement cost-effective watershed restoration plans for multiple ecosystem service benefits. Using locally adapted ecosystem service tools and historical management costs, we quantified spatially explicit management costs and benefits (in terms of groundwater recharge and landscape flammability) to assist a state agency in evaluating cobenefits for a predefined restoration scenario (focused […]
Read MoreA review of the current state of research on the water, energy, and food nexus
The purpose of this paper is to review and analyze the water, energy, and food nexus and regions of study, nexus keywords and stakeholders in order to understand the current state of nexus research. Through selected 37 projects, four types of nexus research were identified including water–food, water–energy–food, water–energy, and climate related. Among them, six […]
Read MoreWater, energy, and food security in the Asia Pacific region
Security measures of three resources; water, energy and food are analyzed for thirty two countries in the Asia Pacific region which are faced to Pacific Ocean, in terms of amounts of the resource, self-production, and diversity of sources of each resource. Diversity for all the three resources is also analyzed using surface water and groundwater for water […]
Read MoreThe economic value of groundwater in Obama
Obama City has a population of 33,000 and is located in the central Wakasa district, in southwest Fukui Prefecture, Japan. Groundwater is used aboveground year round for commercial and domestic purposes and during winter months to melt snow. Submarine groundwater discharge along the coast supports a nearshore fishery in the region. Results from a choice-based […]
Read MoreThe 1960 Tsunami in Hawaii: Long-Term Consequences of a Coastal Disaster
On May 23, 1960, a devastating tsunami struck the city of Hilo on the island of Hawaii. This tsunami provides a unique natural experiment as the tsunami was unexpected, and the other Hawaiian Islands, which were not hit by the tsunami, provide an ideal control group that enables us to precisely identify what happened to the […]
Read MoreIntegrating fast feedback and GIS to plan for important agricultural land designations in Kauai County, Hawaii
With increased affluence worldwide, planning for and preserving land for agriculture and conservation have become important goals in many communities. In Hawai‘i, the identification and designation of Important Agricultural Land (IAL) was first proposed at the 1978 Hawai‘i Constitutional Convention and approved by voters the same year. The state is required to conserve and protect […]
Read MoreBenefit-cost analysis of watershed conservation on Hawai‘i Island
In landscapes around the world, growing attention is being paid to the link between forest structure and water resources. More clarity is vital for informed decision making, especially as water scarcity continues to increase in many regions across the globe. The objective of this study is to estimate the volume of freshwater yield saved per […]
Read MoreElectric Vehicle Greenhouse Gas Emission Assessment for Hawaii
This study estimates greenhouse gas (GHG) emissions of electric vehicles (EVs) compared to that of other popular and similar cars in Hawaii, by county over an assumption of 150,000 miles driven. The GHG benefits of EVs depend critically on the electricity system from which they derive their power. The analysis shows that EVs statewide are […]
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