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Johan Rockström is executive director of the Stockholm Resilience Centre, and teaches natural resource management at Stockholm University. He is a strategist on how resilience can be built into land regions which are short of water, and has published over 100 papers in fields ranging from practical land and water use to global sustainability.〔(Johan Rockström ) Stockholm Resilience Centre. Retrieved 13 July 2011.〕 Johan Rockström was Executive Director of the Stockholm Environment Institute from 2004-2012. Rockström is internationally recognized on global sustainability issues. In 2009, he led the team which developed the Planetary Boundaries framework, a proposed precondition for facilitating human development at a time when the planet is undergoing rapid change.〔 * Rockström J, Steffen W, Noone K, Persson Å, Chapin III FS, Lambin EF, Lenton TM, Scheffer M, Folke C, Schellnhuber HJ, Nykvist B, de Wit CA, Hughes T, van der Leeuw S, Rodhe H, Sörlin S, Snyder PK, Costanza R, Svedin U, Falkenmark M, Karlberg L, Corell RW, Fabry VJ, Hansen J, Walker B, Liverman D, Richardson K, Crutzen P and Foley JA (2009) ("Planetary Boundaries: Exploring the Safe Operating Space for Humanity" ) ''Ecology and Society,'' 14(2): 32.〕 In recognition of this work, ''Fokus'' magazine named him "Swede of the Year" for "engaging and exciting work in sustainable development.〔(Johan Rockstrom Sweden’s Person of Year ) . ''Resilience Science''. Retrieved 13 July 2011.〕 Rockström is vice-chair of the Scientific Advisory Board of the Potsdam Institute for Climate Impact Research〔(Scientific Advisory Board ) ''Potsdam Institute for Climate Impact Research''. Retrieved 13 July 2011. 〕 and chair of the Earth System Visioning Task Team of International Council for Science.〔(Earth System Visioning ) ''International Council for Science''. Retrieved 13 July 2011.〕 In 2010, the magazine ''Miljöaktuellt'' ranked him the second most influential person in Sweden on environmental issues, and ''Veckans Affärer'' gave him its "Social Capitalist Award".〔 In 2011 he chaired the third Nobel Laureate Symposium on Global Sustainability in Stockholm.〔(At Stockholm Gathering of Minds: Planet Earth vs. Humanity ) National Geographic ''Daily News'', 18 May 2011.〕 ==Planetary boundaries== In 2009, Rockström led an international group of 28 leading academics, who proposed a new Earth system framework for government and management agencies as a precondition for sustainable development. The framework posits that there are Earth system processes on the planet that have boundaries or thresholds which should not be crossed. The extent to which these boundaries are not crossed marks what the group calls the ''safe operating space for humanity''.〔(''Earth's boundaries?'' ) Editorial, ''Nature,'' 461, 447–448. 24 September 2009, 〕 The group identified nine "planetary life support systems" essential for human survival, and attempted to quantify just how far seven of these systems have been pushed already. They then estimated how much further we can go before our own survival is threatened; beyond these boundaries there is a risk of "irreversible and abrupt environmental change" which could make Earth less habitable.〔 Boundaries can help identify where there is room and define a "safe space for human development", which is an improvement on approaches which aim at just minimizing human impacts on the planet.〔 According to critics, the exact location of six of these "planetary boundaries" are not proven but arbitrary, such as the 15% limit of earth use to cropland. It is claimed that increased earth use has increased global well-being. They are also connected to local rather than global consequences.〔(Walking the Line: How to Identify Safe Limits for Human Impacts on the Planet ), By David Biello | Scientific American – Wed, Jun 13, 2012〕〔(The Global Doomsayers' Ever-Changing Story ), WSJ, June 15, 2012〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Johan Rockström」の詳細全文を読む スポンサード リンク
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