"As economic, environmental, and security imperatives converge, advanced resource productivity is quickly rising to the top of the global agenda. But let's make no little plans: new technologies, artfully combined via integrative design, can now quintuple the work wrung from energy, water, and other resources. Building on our 1997 collaboration in Factor Four, and cross-pollinating with new findings from around the world, this exciting synthesis combines a powerful efficiency toolkit with farsighted policy insights - vital to ensure that efficiency's gains are not offset but reinforced to create a richer, fairer, safer, and cooler world." – Amory B. Lovins, Chairman and Chief Scientist, Rocky Mountain Institute, USA, Co-Author of 'Factor Four'
"This book shows once again, even to the most conservative critics, that not only are significant improvements possible, they are profitable, and when coupled with the understanding that reducing environmental devastation is critical, provide a vital message of hope for the future." – Hunter Lovins, President, Natural Capitalism Solutions, Co-Author of 'Factor Four'
"The fivefold increase of resource productivity described in this book is impressive, but perfectly feasible, and it would give the world a bit more time to learn how to adapt." – Dennis Meadows, Co-author Limits to Growth and 2009 Japan Prize Laureate
"The exciting thing about Factor Five is the combination of boldness and realism, precisely what is needed to get civilization back onto an economic path that is environmentally sustainable." – Lester R. Brown, President, Earth Policy Institute
"The potential to reduce emissions by 80% on an economically viable basis is good news for world leaders and their negotiators on climate change." – Dr R K Pachauri, Chairman, Intergovernmental Panel on Climate Change (IPCC)
"Factor Five is the clearest non-partisan handbook on ecological renaissance available to date and should be read by every policymaker and practitioner." – Professor Calestous Juma, Harvard Kennedy School
"The arrival of Factor Five couldn't be more timely - or more significant." – Jonathon Porritt, Founding Director, Forum for the Future, UK
"The mounting concern about climate change has distracted attention from the fact that CO2 emissions are just part of the existential problem facing humanity. We need urgently to reduce our use of ALL the resources, not just fossil fuels. This new book is the best point of departure I know for doing that. The fivefold increase of resource productivity it describes is impressive, but perfectly feasible, and it would give the world a bit more time to learn how to adapt to ecological collapse. The book has two especially important innovations. The authors deal seriously with the rebound effect, and they base their scenarios on a long term trajectory of rising energy prices." – Dennis Meadows, Co-author Limits to Growth and 2009 Japan Prize Laureate
"Is it possible to imagine a world where we can actually phase out fossil fuels before the climate phases us out? It's now feasible by reading Factor Five." – Peter Newman, Professor of Sustainability, Curtin University and author of Resilient Cities
"[There can be] no sustainable development without a sustainable development of companies. Factor Five provides compelling arguments and examples that sustainable business is achievable and profitable on a large scale and that companies play a key role in creating sustainable development. Factor Five confirms the crucial role of increasing eco-efficiency to foster sustainable development." – Stefan Schaltegger, Professor of Sustainability Management, Leuphana University, Germany
"The world needs radical eco-innovation to shape an opportunity out of the current crisis. This book provides excellent key examples in a systems perspective. Written by radical thinkers with a unique experience on how change can be managed, this book is a must-reading for both leaders and academics." – Prof. Dr. Raimund Bleischwitz, Wuppertal Institute, Co-Director 'Material Flows and Resource Management' Professor at the College of Europe, Bruges/Belgium
"Some may have ignored the message of Factor Four 15 years ago. We can no longer afford to ignore it, and should now embrace the strengthened message of Factor Five." –Professor Bedrich Moldan, Senator, Czech Republic, Former Chairman, European Environment Agency, and former Czechoslovak Environment Minister
"We are living in the most exciting era of human history. We are in the process of expanding our perspectives from a focus on short-term economic and materialistic growth to a whole-system approach with true, long-term happiness for all at its core. We are adding the need for 'sufficiency' to 'efficiency' and 'productivity' in our discussions on how to reduce human impacts on the Earth. Economy and ecology are not an 'either-or' trade-off. We now know that both are critical in every aspect of society. We must advance science and technology based on values and vision. The 'leapfrog' effect should be promoted in developing nations-not only in terms of technology but also in terms of lifestyles and societal values. Our urgent imperative is to figure out how to maximize happiness while minimizing environmental impacts. Factor Five provides the West and East alike with a compass to set our visions and to measure our progress." – Junko Edahiro, Environmental Affairs Journalist, co-Chief Executive, Japan for Sustainability
"Factor Five is the clearest non-partisan handbook on ecological renaissance available to date. It should be read by every policymaker and practitioner irrespective of their political position on global change." – Professor Calestous Juma, Harvard Kennedy School
"We all know what will happen if we go on producing and consuming the same way as in the twentieth century. But we don't really know how to produce and consume in the planet-friendly way. This is why we need this book. So urgently." – Brice Lalonde, French Climate Ambassador, former environment minister of France
"Strong economic signals and innovative technologies make a powerful combination, and are the best hope - indeed, the only hope - of the changes needed to protect the environment. Building on the robust foundation of Factor Four, Ernst von Weizsacker and his colleagues write an inspiring manifesto for change to reduce resource use while minimising the impact on living conditions. If their recipe is sometimes over-optimistic, that is a good fault. The environment needs some optimistic friends these days." – Frances Cairncross, Exeter College, Oxford (Author of Costing the Earth)
"Climate change represents the biggest challenge our generation has experienced. Factor Five shows us through sustainable business practices we can achieve positive environmental and economic outcomes. They are not mutually exclusive concepts - sustainability is just good business." – Dan Atkins, Managing Director, Shaper Group
"Even if the climate were not changing, the need for the transition from fossil fuels to renewable, regenerative systems would be just as urgent. This is a recipe book for a far more economically rational world, as well as a more sustainable one." – Professor Janis Birkeland, Queensland University of Technology (QUT), and author of Positive Development
"Every lawyer and lobbyist who is asked to defend 'Business As Usual' should read Factor Five. This manual for re-engineering the future holds out both hope and profit in equal parts - if only we can get the political framework right, and align the lobbies with the interests of humanity." – Tom Spencer, Former Member of the European Parliament, Founder and Executive Director of the European Centre for Public Affairs, and Vice Chairman, Institute for Environmental Security
"Today, the world is faced by many challenges which all derive from the unsustainable practices with which we use our resources. Despite the most severe global economic crisis, resource prices have not returned to the low price levels of the 1990's, demonstrating that we have to reduce our 'resource obesity' as an economy and come to sustainable levels of resource consumption. A factor five improvement in resource efficiency is not only necessary, it is imperative for economies and companies to survive in a new resource and atmosphere-constrained world. This book not only clearly makes this point, but also shows that it is possible with what we know today. This key message makes this book essential reading." – Professor Ernst Worrell, Utrecht University, Lead Author, IPCC Working Group III, Fourth Assessment Report (2004 - 2007)
"Factor Five is about how to achieve the resource productivity gains that are necessary for the world to avoid a future with declining human wellbeing. It provides a clear way forward. In the past, the pursuit of efficiency gains has sometimes led to loss of resilience, resulting in unexpected and unwanted outcomes (like salinized irrigation systems). I applaud the Factor Five initiative, and urge it to embrace the equally important goal of maintaining resilience in the face of the looming global shocks confronting the world." – Dr Brian Walker, CSIRO Research Fellow, Resilience Alliance Program Director and Chair of Board
