From Journalist to Witness
John Dennis Liu was born in 1953 in Nashville, Tennessee, to a Chinese father and an American mother. He started his career as a television cameraman and journalist for CBS News and other outlets in Asia.
In 1979 he moved to China, where he spent decades covering the country's transformation as a correspondent and documentary filmmaker. A chance assignment in the mid-1990s rerouted his life.
In 1995 he was invited to document a massive ecological restoration project on China's Loess Plateau, a region in north-central China about the size of France. The plateau was one of the most degraded landscapes on Earth.
Thousands of years of overgrazing, deforestation, and unsustainable farming had stripped it bare. Erosion had carved deep gullies into the loess soil, dumping billions of tons of sediment into the Yellow River each year. The region was synonymous with poverty, dust storms, and ecological collapse.
The Loess Plateau Transformation
What Liu saw over the next years astonished him. Beginning in 1994, the Chinese government, with World Bank backing, launched the Loess Plateau Watershed Rehabilitation Project. Roughly 35,000 square kilometers in scope.
The work involved terracing steep slopes, banning grazing on degraded hillsides, planting trees and grasses, and building small dams to catch sediment and water. Local communities were skeptical at first. Compensation for changes in land use brought them in. Eventually they owned the work themselves.
Liu documented the transformation through a series of films, most prominently Green Gold and Hope in a Changing Climate. His footage showed barren, eroded wasteland turning lush and productive within a single decade.
Crop yields rose. Incomes rose. Biodiversity returned. Sediment loads in the Yellow River dropped sharply. More than 2.5 million people in the project area saw their lives improve.
The experience convinced Liu that large-scale ecosystem restoration was possible, profitable, and socially transformative. He became an evangelist for the idea that degraded land anywhere could be brought back using the same playbook. Restore vegetation. Manage water. Rebuild soil. Engage local communities.
Ecosystem Restoration Camps
In 2017 Liu founded Ecosystem Restoration Camps, a global movement that establishes community-based camps on degraded land. Volunteers and local residents live on-site and work together using practical, low-cost methods.
The first camp opened in the Altiplano region of southeastern Spain, on land suffering desertification. More camps followed in Mexico, Cameroon, South Africa, Costa Rica, the Netherlands, and elsewhere.
Liu has become one of the most influential voices in the global restoration movement. He has served as an Ambassador for the United Nations Decade on Ecosystem Restoration and has lectured at universities, conferences, and policy forums. His films have been viewed by millions and are used widely in environmental education.
A Radical Economics
Liu's central argument is simple and radical. Restoring degraded ecosystems generates more wealth and well-being than the extraction that destroyed them.
He pushes for a shift in how societies value natural systems. Ecological function, not resource extraction, should be the basis of economic thinking.
His documentation of the Loess Plateau remains one of the most powerful demonstrations on record. Even catastrophically broken landscapes can be restored within a human lifetime.