4 ms·Shame lots of plants have been cut down in the lungs of the earth, the rainforests of South America.by philjohn 4y agoShame lots of plants have been cut down in the lungs of the earth, the rainforests of South America.nannal 4y agoI was of the understanding oceanic alge were much more responsible for oxygenation than any form flora. Not to down play the importance of trees of course.philjohn 4y agoBut are they susceptible to changes in ocean temperature (either up, or down)?