In this paper I would like to deal with the question how environmentally engaged art can infirm Carlson ́s dualism between art and nature in his cognitive environmental aesthetics. I understand environmentally engaged art as a part of new tendencies in the second half of the 20th century, when we can observe shift towards more conceptual and engaged art forms that leave the insides of galleries. This type of art projects are in opposition to Carlson ́s art-nature dichotomy. Equally, I would like to show that science is in Carlson ́s theory limiting and can blocade aesthetic experience in many cases. Eventhough it may appear that science can diminish aesthetic experience, environmentally engaged artists, who often use scientific knowledge in their projects, show, that science can be also beneficial in creating aesthetic ́s intention.