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Carl N. Hodges is an American atmospheric physicist and founder of the Seawater foundation. He is the main driving force behind ideas of using sea canals to irrigate deserts.

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Josef "Sepp" Holzer is a farmer, an author, and an international consultant for natural agriculture. After an upbringing in a traditional Catholic rural family, he took over his parents' mountain farm business in 1962 and pioneered the use of ecological farming, or permaculture, techniques at high altitudes (1,100 to 1,500 meters after being unsuccessful with regular farming methods.

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Brad Stewart Lancaster is an expert in the field of rainwater harvesting and water management. He is also a permaculture teacher, designer, consultant and co-founder of Desert Harvesters, a non-profit organization.

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Geoff Lawton is a British-born Australian permaculture consultant, designer, teacher and speaker. Since 1995 he has specialised in permaculture education, design, implementation, system establishment, administration and community development.

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John Dennis Liu is a Chinese American film-maker and ecologist. He is also a researcher at several institutions. In January 2015 John was named Visiting Fellow at Netherlands Institute of Ecology (NIOO) of the Royal Netherlands Academy of Arts and Sciences. John is also Ecosystem Ambassador for the Commonland Foundation based in Amsterdam, Netherlands. In 2017 John Liu founded Ecosystem Restoration Camps, a worldwide movement that aims to restore damaged ecosystems on a large scale.

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Bruce Charles "Bill" Mollison was an Australian researcher, author, scientist, teacher and biologist. In 1981, he was awarded the Right Livelihood Award "for developing and promoting the theory and practice of permaculture".

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Clifford Allan Redin Savory is a Zimbabwean ecologist, livestock farmer, and president and co-founder of the Savory Institute. He originated Holistic management (agriculture), a systems thinking approach to managing resources.

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Yacouba Sawadogo is a farmer from Burkina Faso who has been successfully using a traditional farming technique called Zaï to restore soils damaged by desertification and drought. Such techniques are known by the collective terms agroforestry and farmer-managed natural regeneration.