Environment

Project 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.

UHERO’s Nori Tarui giving the Keynote at the Society for Environmental and Economic Studies 2020 Annual Conference (in Japanese).

Rooftop 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 […]

What goes around comes around: Export-enhancing effects of import-tariff reductions

In international trade, transportation requires a round trip for which a transport firm has to commit to shipping capacity that is sufficient to meet the maximum shipping volume. This may cause the “backhaul problem.” Trade theory suggests that, facing the problem, transport firms with market power adjust their freight rates strategically when import tariffs change. As a […]

Optimal multi-instrument management of interrelated resources and a groundwater dependent ecosystem

We develop and operationalize an integrated groundwater and watershed management model using data from the Kīholo aquifer on the west coast of Hawai’i Island. Results from a numerical simulation suggest that investment in fencing (passive management) is preferred to invasive species removal (active management) if we are limited to selecting a single conservation tool. However, […]

Groundwater sustainability: A review of the interactions between science and policy

Concerns over groundwater depletion and ecosystem degradation have led to the incorporation of the concept of groundwater sustainability as a groundwater policy instrument in several water codes and management directives worldwide. Because sustainable groundwater management is embedded within integrated, co-evolving hydrological, ecological, and socioeconomic systems, implementing such policies remains a challenge for water managers and […]

Economic benefits of hydrologic services from watershed protection and restoration

Watershed protection and restoration provide a range of benefits including clean and ample water supplies, 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 strategic […]

UHERO’s Leah Bremer on Supporting real-world watershed management

UHERO’s Leah Bremer’s recent publication in Water Resources Research was featured in the Global Water Forum this week. She and a team of interdisciplinary colleagues worked with on-the-ground managers of watershed protection programs in Brazil to identify real-world decision contexts where hydrologic modeling and monitoring can support planning and decision making. They demonstrate the importance […]

Risk preferences after a typhoon: An artefactual field experiment with fishers in the Philippines

When are risk preferences stable and when do they change? In general, individual preferences tend to be consistent across time and space but extreme shocks, such as natural disasters, appear to change how people make economic decisions. We conduct an artefactual field experiment with fishers on a remote island in the Philippines and investigate the effect of […]