Doug Tompkins' Patagonia

Doug Tompkins at his Parque Pumalin park in Chile Photograph: Robin Hammond

A meadow in Parque Pumalin Photograph: Robin Hammond

Doug Tomkins (left) on recently-purchased land he intends to restore to its original forest condition Photograph: Robin Hammond

Doug Tomkins takes to the skies to survey Parque Pumalin Photograph: Robin Hammond

One of the many fjords running through Doug Tompkins’ 800,000 acre estate Photograph: Robin Hammond

The Chaitén volcano, in Parque Pumalin, which erupted violently last May Photograph: Robin Hammond

The Chaitén Volcano in Parque Pumalin Photograph: Robin Hammond

Grafitti on a wall opposite the Parque Pumalin head office questions what kind of ecologist Doug Tompkins is Photograph: Robin Hammond

Doug Tompkins at work in his restored 100-year-old farmhouse in Parque Pumalin Photograph: Robin Hammond

Parque Pumalin employee Francisco Calabi Floody with slow-growing and endangered Alerce saplings planted in an attempt to restore the park to its former state Photograph: Robin Hammond

A stream running through Parque Pumalin Photograph: Robin Hammond

Doug Tompkins and his wife, Kris, on their Patagonian farm Photograph: Robin Hammond