The world environment is in long-term decline from over-use and abuse. If an economy was ecologically sustainable and well designed to let people work without harming the ecosphere recession would not be a factor in regard to the environment. With the present economic structure that plunders the ecosphere, displaces and edges it toward extirpation the ecosphere declines during recession and expansion.
During recession or depression poverty may move people toward exploiting anything of value from Saguaro cactus to desert turtles and bear livers to earn something. Enforcement of endangered species laws may stop as funding decreases. etc.
During the Covid 19 recession the San Francisco peninsula did not bounce back with an old growth Redwood or Sequoia forest appearing to bump out the buildings and asphalt.