Pentti Linkola

Kaarlo Pentti Linkola (7 December 1932 – 5 April 2020) was a Finnish radical deep ecologist, ornithologist, polemicist, naturalist, writer, and fisherman. 
Works.
He wrote mainly about his ideas and in Finland was a well known free-thinker. Linkola was a fisherman from 1959 to 1995. He fished on Keitele, Päijänne and Gulf of Finland, and beginning in 1978 he fished on Vanajavesi.
Claims.
Linkola blamed humans for the ongoing degradation of the environment. He promoted rapid population decline to fight the problems commonly seen in overpopulation.