Kaarlo Pentti Linkola (7 December 1932 in Helsinki – 5 April 2020)[1][2][3] was a prominent Finnish deep ecologist,[4] ornithologist,[5] polemicist, naturalist, writer, and fisherman.

He wrote widely about his ideas and in Finland was a prominent thinker,[6][7]: 271  and is linked by some authors to ecofascism and to authoritarian deep ecology.

[13] Although he was one of Finland's most famous ornithologists, Linkola started to live an austere life as a fisherman, as this was in line with his teachings.

The foundation receives donations from private individuals and companies, then purchases forest areas deemed unique enough to deserve protection.

He dedicated his 1979 Toisinajattelijan päiväkirjasta (From the Diary of a Dissident) to German far-left militants Andreas Baader and Ulrike Meinhof, stating that "they are the signposts, not Jesus of Nazareth or Albert Schweitzer".

[5] He supported acts of terrorism such as the 2004 Madrid train bombings as he viewed them as disruptions to a society that is responsible for the degradation of the Earth.

[26] Linkola was pleased to see the rise of Greta Thunberg, a Swedish activist seventy years younger: "I follow very closely what is said about her.

"[27] In the 2009 book Environmental Change and Foreign Policy: Theory and Practice, Mika Merviö, Professor of International Relations at the Kibi International University, contended that while most environmentalists in Finland distanced themselves from Linkola, those concerned about the environment avidly read his writings.