Support for nature in education was given an added boost by Howard Gardner, professor of education at Harvard University, who in 1983 developed the powerful theory of multiple intelligences. As described in an earlier chapter, Gardner proposed seven different intelligences in children and adults, including linguistic intelligence, logical-mathematical intelligence, spatial intelligence, bodily-kinesthetic intelligence, musical intelligence, interpersonal intelligence, and intrapersonal intelligence. More recently, he added naturalist intelligence (“nature smart”) to his list.
This is not a theory that is accepted by everyone. https://en.wikipedia.org/wiki/Theory_of_multiple_intelligences#Critical_reception