A5044822217- Cryospheric studies and observations
- Geology and Paleoclimatology Research
- Landslides and related hazards
- Social Acceptance of Renewable Energy
- Climate change and permafrost
- Global Energy and Sustainability Research
- Energy and Environment Impacts
- Sustainability and Climate Change Governance
- Geophysical Methods and Applications
- Land Use and Ecosystem Services
- Energy, Environment, and Transportation Policies
- Geological formations and processes
- Methane Hydrates and Related Phenomena
- Pleistocene-Era Hominins and Archaeology
- Seismic Waves and Analysis
- Arctic and Antarctic ice dynamics
- Integrated Energy Systems Optimization
- Ecosystem dynamics and resilience
- Environmental and Cultural Studies in Latin America and Beyond
- Microplastics and Plastic Pollution
- Winter Sports Injuries and Performance
- Photovoltaic Systems and Sustainability
- Conservation, Biodiversity, and Resource Management
- Indigenous Studies and Ecology
- Cultural Heritage Management and Preservation
University of Vermont
2013-2024
University of Liverpool
2015-2021
Scottish Environment Protection Agency
2020
John Wiley & Sons (United States)
2019
Hudson Institute
2019
McGill University
2017-2018
Simon Fraser University
2011-2016
Northumbria University
2007-2010
University of Rhode Island
1969
Energy democracy is an emergent social movement advancing renewable energy transitions by resisting the fossil-fuel-dominant agenda while reclaiming and democratically restructuring regimes. By integrating technological change with potential for socioeconomic political change, links justice equity innovation. Through a policy mix lens, this research examines in United States to understand how what extent of instruments currently proposed among advocates corresponds overarching goals...
We present subdaily ice flow measurements at four GPS sites between 36 and 72 km from the margin of a marine-terminating Greenland outlet glacier spanning 2009 melt season.Our data show that >35 margin, seasonal shorter-time scale variations are controlled by surface melt-induced changes in subglacial hydrology.Following onset melting each site, motion increased above background for up to 2 months with resultant up-glacier migration both peak acceleration.Later our survey, all decreased...
The study identified and quantified nine plastic polymers frequently detected in the environment by collecting sediment seawater samples from coastal areas Auckland, New Zealand. Polymer types, size distributions, number of microplastics (MPs) were analyzed using a laser direct infrared (LDIR) imaging technique. Compared to conventional spectroscopic or microscopic methods, LDIR enabled capturing quantifying MPs much lower ranges (20–5000 μm). results demonstrated widespread occurrence...
Current macroeconomic policy promotes continuous economic growth. Unemployment, poverty and debt are associated with insufficient Economic activity depends upon the transformation of natural materials, ultimately returning to environment as waste. levels throughput exceed planet’s carrying capacity. As a result poorly constructed institutions, society faces unacceptable choice between ecological catastrophe human misery. A transition steady-state economy is required, characterized by rate...
ABSTRACT The southernmost terrestrial extent of the Irish Sea Ice Stream (ISIS), which drained a large proportion last British–Irish Sheet, impinged on to Isles Scilly during Marine Isotope Stage 2. However, age this ice limit has been contested and interpretation that occurred Last Glacial Maximum (LGM) remains controversial. This study reports new ages using optically stimulated luminescence (OSL) dating outwash sediments at Battery, Tresco (25.5 ± 1.5 ka), cosmogenic nuclide exposure...
ABSTRACT We present a new chronology to constrain ice‐margin retreat in the northern Irish Sea Basin. Estimates on timing of ice thinning derived from surface exposure ages for boulders summits Isle Man and south‐west Cumbria suggest that was commensurate with rapid followed short‐lived advance Ice Stream (ISIS) maximum limits Celtic Sea. This Basin fastest at 20 ka response wider calving margin, but slowed as stabilized oscillated against Man. provide first age constraints Scottish...
Abstract Predicting the future response of ice sheets to climate warming and rising global sea level is important but difficult. This especially so when fast‐flowing glaciers or streams , buffered by shelves, are grounded on beds below level. What happens these shelves removed? And how do stream surrounding sheet respond abruptly altered boundary conditions? To address questions others we present new geological, geomorphological, geophysical geochronological data from ice‐stream‐dominated NW...
Ground-penetrating radar is widely applied to the study of glacial and frozen materials. Significant areas investigation include: 1) water content glaciers ground, often indicating state thermal regime glacier ice or permafrost, 2) route-ways for subglacial∕subsurface drainage, 3) internal structure materials, sometimes flow properties 4) fracturing deformation ground ice, 5) inclusions in sediment∕ice matrix, such as salt sea sediment ground. This review application GPR materials highlights...
Rates of ice-stream retreat over decades can be determined from repeated satellite surveys and millennia by paleoenvironmental reconstructions. Centennial time scales are an important temporal gap in geological observations value process understanding evaluation numerical models. We address this developing a 3 ka 123 km series for the Irish Sea ice stream (ISIS), major outlet draining last British-Irish sheet. The Llŷn Peninsula (northwest Wales, UK) contains numerous ice-marginal indicators...
Abstract As the extent and intensity of human impacts on ecosystems increase capacity to absorb these dwindles, unanticipated behavior in ecological systems—or surprises—is likely become more common. The concept surprise is broadly applied but seldom explicitly developed literature, ecologists can employ diverging language, frameworks, interpretations surprise. Here, we synthesize what has meant studying events review development use ecology. We define as a situation where expectations or...
Marine terminating ice streams are a major component of contemporary sheets and likely to have fundamental influence on their future evolution concomitant contribution sea-level rise. To accurately predict this requires that modern day observations can be placed into longer-term context numerical sheet models used for making predictions validated against known former masses. New geochronological data document stepped retreat the paleo–Irish Sea Ice Stream from its Last Glacial Maximum...
ABSTRACT The offshore sector around Shetland remains one of the least well‐studied parts former British–Irish Ice Sheet with several long‐standing scientific issues unresolved. These key include (i) dominance a locally sourced ‘Shetland ice cap’ vs an invasive Fennoscandian Sheet; (ii) flow configuration and style glaciation at Last Glacial Maximum (i.e. terrestrial marine glaciation); (iii) nature confluence between Sheets; (iv) cause, rate sheet separation; (v) wider implications...
ABSTRACT Here we reconstruct the last advance to maximum limits and retreat of Irish Sea Glacier (ISG), only land‐terminating ice lobe western British Ice Sheet. A series reverse bedrock slopes rendered proglacial lakes endemic, forming time‐transgressive moraine‐ bedrock‐dammed basins that evolved with marginal retreat. Combining, for first time on glacial sediments, optically stimulated luminescence (OSL) bleaching profiles cobbles single grain small aliquot OSL measurements sands, has...
During the last (MIS 2) and older glaciations of North Sea, a Sea Lobe (NSL) British-Irish Ice Sheet flowed onshore terminated on lowlands eastern England, constructing inset sequences either substantial ice-marginal deposits tills or only thin till veneer, indicative complex highly dynamic glaciological behaviour. The glaciation limit represented by Marsh Tills Stickney Horkstow Moraines in Lincolnshire is regarded as maximum margin NSL during MIS 2 was attained at ∼19.5 ka determined OSL...
Conventional ways of communicating about the transition to renewable energy in North America presuppose that systems can be changed while sustaining existing social, political and economic relations. Energy democracy counters such ostensibly apolitical narratives by emphasizing socially transformative potential this transition. Yet democracy, as both organizing principle social movement, is itself increasingly recognized flexible contested. This research seeks better discern understand...