Pete Oxford / Yuanyang grand terraces built 3000 years ago by Hani people Honge, Yunnan, China

Juan Carlos Munoz / Terrace and accommodation at Star Camp, Faia Brava Reserve, Coa Valley, Western Iberia, Portugal. April 2016.

Ashley Cooper / Woman carrying a load of foliage from the surrounding forest to feed goats and cows. Annapurna, Himalayas, Nepal, December 2012

Ashley Cooper / Subsistence farming in the Annapurna Himalayas in Nepal. The terracing has been developed over centuries to farm this steep mountain land.

Ashley Cooper / Field terraces above a Berber village in the Anti Atlas mountains of Morocco, North Africa. April 2012. In recent years, rainfall totals have reduced by around 75% as a result of climate change.

David Pattyn / Coquerel's sifaka (Propithecus coquereli) on tree trunk watching tourists at hotel, Anjajavy Private Reserve, north west Madagascar, September 2016.

David Pattyn / Coquerel's sifaka (Propithecus coquereli), two sitting on terrace of hotel room, Anjajavy Private Reserve, north west Madagascar, September 2016.

Pete Oxford / Adi Gallong rice terraces, Adi Gallong Tribe, Arunachal Pradesh, North East India, November 2014.

Pete Oxford / Adi Gallong rice terraces, Adi Gallong Tribe, Arunachal Pradesh, North East India, November 2014.

Bruno D'Amicis / Volcanic dry stone walls with Caper (Capparis spinosa) and Indian-fig Opuntia (Opuntia ficus-indica). Linosa Island, Sicily, Italy, July.

Matthew Maran / Huinay Huayna, the last ruins before Machu Picchu on the final day of the Inca Trail, Andes, Peru

Jose B. Ruiz / Castellfort village above ancient terracing. Castellon, Spain