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  • Heleba, David (2004-11-24
      image of rack and pinion mechanism used to open ridge or side vents. Note metal drive shaft through pinion gear that attachs to motor (not shown)
  • Rayburn, Lisa; Tignor, Buddy (2006-04-10
      The flora of the Southern Appalachians is among the most diverse in the Western hemisphere. Project Branch Out is designed to both preserve and profit from this extremely diverse flora by producing for sale plants that have been under intense pressure from wild harvest. Project Branch Out is the greenhouse component of EnergyXchange. Our greenhouses are heated with boiler water circulating through radiant heat flooring. Boilers are powered by landfill gas. In the greenhouses we propagate native ornamentals like rhododendrons, azaleas, and others. Project Branch Out also includes a demonstration site for aquaponic production. If you have any further questions about Project Branch Out please contact Lisa Rayburn, Nursery Production coordinator: Lisa@EnergyXchange.org.
  • Wilson, Sandra (2006-03-23
      Shown is large storage tank used to capture rainfall for irrigation of floriculture foliage crops.
  • Golev, A.; Scott, M.; Erskine, P. D.; Ali, S. H.; Ballantyne, G. R. (Resources Policy, 2014
      The unique properties of rare earth elements (REEs) and lack of alternatives for their application in modern technologies, especially electronics and fast growing green technologies such as renewable energy generation and storage, energy efficient lights, electric cars, and auto catalysts, as well as specific military and aerospace applications, underpin their strategic status. The absolute domination of China in the production of REEs, aggravated by a significant reduction in export quotas since 2010, raised severe concerns of securing REE supply in the USA, Japan, European Union and other countries. In 2010-2012 it resulted in skyrocketing prices and supply deficit for most REEs, leading to numerous new REE start-up companies around the world, with allocation of large investments in additional geological explorations and technology development. At the same time, the supply difficulties enforced the downstream users of REEs to invest in the development of recycling technologies and reuse options for these elements. The main focus of this paper is to overview existing and emerging REE supply chains outside of China up to date (end of 2013), define their environmental constraints and opportunities, as well as reflect on a broader range of technical, economic, and social challenges for both primary production and recycling of REEs. A better understanding of these factors could help to optimize the supply chain of virgin and recycled rare earths, minimise the environmental impacts arising from their processing, and be used as a prototype for a broader range of critical metals and commodities. (c) 2014 Elsevier Ltd. All rights reserved.
  • Roman, J., Kraska, J. (Science, 2016
      What to do with Gitmo after it closes? “Reboot it,” says Joe Roman, an oceans expert in UVM’s Gund Institute — “for research diplomacy.” In Science magazine, Roman and a U.S. Naval War College scholar make the case for Guantanamo 2.0 as a way to improve conservation in the Caribbean — and build cooperation between the U.S. and Cuba. (Photo: Corbis)
  • Voinov, A.; Farley, J. (Ecological Economics, 2007
      Most definitions of sustainability imply that a system is to be maintained at a certain level, held within certain limits, into the indefinite future. Sustainability denies run-away growth, but it also avoids any decline or destruction. This sustainability path is hard to reconcile with the renewal cycle that can be observed in many natural systems developing according to their intrinsic mechanisms and in social systems responding to internal and external pressures. Systems are parts of hierarchies where systems of higher levels are made up of subsystems from lower levels. Renewal in components is an important factor of adaptation and evolution. If a system is sustained for too long, it borrows from the sustainability of a supersystern and rests upon lack of sustainability in subsystems. Therefore by sustaining certain systems beyond their renewal cycle, we decrease the sustainability of larger, higher-level systems. For example, Schumpeter's theory of creative destruction posits that in a capitalist economy, the collapse and renewal of firms and industries is necessary to sustain the vitality of the larger economic system. However, if the capitalist economic system relies on endless growth, then sustaining it for too long will inevitably borrow from the sustainability of the global ecosystem. This could prove catastrophic for humans and other species. To reconcile sustainability with hierarchy theory, we must decide which hierarchical level in a system we want to sustain indefinitely, and accept that lower level subsystems must have shorter life spans. In economic analysis, inter-temporal discount rates essentially tell us how long we should care about sustaining any given system. Economists distinguish between discount rates for individuals based on personal time preference, lower discount rates for firms based on the opportunity cost of capital, and even lower discount rates for society. For issues affecting even higher-level systems, such as global climate change, many economists question the suitability of discounting future values at all. We argue that to reconcile sustainability with inter-temporal discounting, discount rates should be determined by the hierarchical level of the system being analyzed. (C) 2006 Elsevier B.V. All rights reserved.
  • Danks, C., M. Goebel, and K. Steer (Greenleaf Publishing, Sheffield, UK.Sheffield, UK, 2003
  • Unknown author (2005-06-07
  • Farquhar, George (UVM Theatre, 1967
  • Farquhar, George (UVM Theatre, 1967
  • Farquhar, George (UVM Theatre, 1967
  • Farquhar, George (UVM Theatre, 1967
  • Farquhar, George (UVM Theatre, 1967
  • Farquhar, George (UVM Theatre, 1967
  • Farquhar, George (UVM Theatre, 1967
  • Farquhar, George (UVM Theatre, 1967
  • Farquhar, George (UVM Theatre, 1967
  • Farquhar, George (UVM Theatre, 1967
  • Farquhar, George (UVM Theatre, 1967

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