Lessons from 10 Years of Impact Investing

by Tammy E. Newmark and Michele Pena
(Earthscan/Routledge Press); available on

“Conserving the natural systems that sustain the planet’s people and wildlife is a tall order, and one that can’t be met without the active involvement of the private sector. This book is a valuable primer on how well-directed financial capital can help save the Earth’s natural capital and bring tangible benefits to local communities in the process.”
MarkTercek, President and CEO, The Nature Conservancy

“Portfolio for the Planet offers an exciting contribution to our understanding of impact investing and sustainable business development opportunities within emerging markets. Newmark and Pena offer not only an engaging presentation of successful business development case studies and investor experience, but also frame their work in terms we may all learn from—regardless of where our investing strategies may take us!”
Jed Emerson, Author and EVP at ImpactAssets

“A wonderfully engaging and highly useful read by one of the earliest and most successful pioneers of impact investing. Whether you are a neophyte or a seasoned investor, Portfolio for the Planet outlines the nuts and bolts – as well as the art – of impact investing.”
Dr. Pamela Hartigan, Director, Skoll Centre for Social Entrepreneurship, Said School, UK

Investing in Sustainable Entrepreneurship and Business Ventures in the Developing World: Key Lessons and Experiences of EcoEnterprises Fund

Global Sustainability as a Business Imperative

by Tammy E. Newmark and Jacob Park
Part of the series "The Palgrave Series on Global Sustainability" pp 55-71; available on


Rapid growth of the global economy has accelerated the degradation of the Earth’s most important asset: the environment. With the world’s population increasing, the demand on natural resources to cover even basic human needs is intensifying, and finding ways to meet those needs without exhausting our finite resource base will be imperative. The good news is that there is an emerging realization that economic growth does not have to come at the environment’s expense. Around the world, passionate entrepreneurs are introducing innovative products and ways of doing business that use natural resources sustainably and can help ensure their long-term viability.

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