As a philosopher Linkola can be described as a biocentric empirist. He demands that man return to a smaller ecological niche and abandon modern technology and the pursuit of economic progress. Sometimes however, he has said that the good society should have high military technology in order to defend itself from being conquered by non-environmental societies. Linkola considers population growth the biggest threat to life on Earth. He advocates eugenics and genocide as a means to combat overpopulation. He has suggested that big cities should be attacked with nuclear weapons. Linkola has described humans as the cancer of the nature. When some particular war has started somewhere in the world, he has often given statements that the war is good since it decreases population.
http://en.wikipedia.org/wiki/Pentti_Linkola