Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Gerhard Petschel-Held"'
Autor:
Gerald C. Nelson, Elena Bennett, Asmeret A. Berhe, Kenneth Cassman, Ruth DeFries, Thomas Dietz, Achim Dobermann, Andrew Dobson, Anthony Janetos, Marc Levy, Diana Marco, Nebojsa Nakicenovic, Brian O'Neill, Richard Norgaard, Gerhard Petschel-Held, Dennis Ojima, Prabhu Pingali, Robert Watson, Monika Zurek
Publikováno v:
Ecology and Society, Vol 11, Iss 2, p 29 (2006)
This paper provides an overview of what the Millennium Ecosystem Assessment (MA) calls "indirect and direct drivers" of change in ecosystem services at a global level. The MA definition of a driver is any natural or human-induced factor that directly
Externí odkaz:
https://doaj.org/article/aad2354d29db42d1af0131065a4c0a00
Publikováno v:
Ecology and Society, Vol 11, Iss 2, p 11 (2006)
This paper outlines the qualitative components (the storylines) of the Millennium Ecosystem Assessment (MA) scenarios. Drawing on a mixture of expert knowledge, experience, and published literature, we have explored plausible consequences of four tra
Externí odkaz:
https://doaj.org/article/2449240c6034491e8aad9eb47b4c3076
Publikováno v:
Coping with Changing Environments ISBN: 9780429463648
This chapter shows that all the regions considered can be classified as ‘marginal’. The marginality in most regions depicts some degree of sensitivity which can augment the endangerment of the regional ecosystem by any agricultural or gathering a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce219552b28a799b295be431686fb10c
https://doi.org/10.4324/9780429463648-11
https://doi.org/10.4324/9780429463648-11
Autor:
Thomas Kleinen, Gerhard Petschel-Held
Publikováno v:
Climatic Change. 81:283-312
An approach to considering changes in flooding probability in the integrated assessment of climate change is introduced. A reduced-form hydrological model for flood prediction and a downscaling approach suitable for integrated assessment modeling are
Autor:
Diana Sietz, B. Untied, Hans Joachim Schellnhuber, Gerhard Petschel-Held, O. Walkenhorst, G. Mertins, M.K.B. Lüdeke
Publikováno v:
Regional Environmental Change, 6(3), 132-146
Regional Environmental Change 6 (2006) 3
Regional Environmental Change 6 (2006) 3
A qualitative model of smallholder agriculture with a few core variables and two allocation rules for labour and investment in agricultural resources was developed to cover spatial heterogeneity in Northeast Brazil. This region is characterised by la
Publikováno v:
Ocean Dynamics. 53:53-63
A simple two-box model of the hemispheric thermohaline circulation (THC) is considered. The model parameterizes fluctuations in the freshwater forcing by a stochastic process. The dependence of the power spectral density and the lifetime of quasistat
Publikováno v:
Climatic Change. 56:73-89
The tolerable windows approach (TWA) allows the climate policyformulation process to be safeguarded in the following way. First,guardrails are defined in order to exclude intolerable climatechange impacts, on the one hand, and unacceptable socioecono
Publikováno v:
Climatic Change. 56:37-56
An integrated assessment model (IAM) conceived in the vein ofthe inverse approach is introduced. The model is designed tohelp social actors in making informed judgments about climatechange impact targets, mitigation costs, and implementation mechanis
Publikováno v:
Integrated Assessment. 3:201-219
A dynamic description of Global Change on an intermediate functional scale on the basis of approximately independent sub-models is elaborated. Sixteen of these sub-models are primarily identified as Hazardous Functional Patterns (HFPs) generating non
Autor:
Hans Joachim Schellnhuber, Hans-Martin Füssel, Gerhard Petschel-Held, Thomas Bruckner, Ferenc L. Toth, Marian Leimbach
Publikováno v:
Environment: Science and Policy for Sustainable Development. 44:22-34
(2002). Exploring Options for Global Climate Policy. A New Analytical Framework. Environment: Science and Policy for Sustainable Development: Vol. 44, No. 5, pp. 22-34.