A Tree Grows in a Courtyard.

Barney is surrounded by apartments, sidewalks, stones, concrete, a pool, gravel, shrubs, bushes, fellow compatriots (trees), and grass. In terms of Barney's ability to live, he receives plenty of sunlight and water. However, I'm not sure how much of his root growth is obstructed by the built environment, or if this is even a problem.

Unfortunately, I'm not sure what is feasible to do, in order to make this area more sustainable. The close proximity of the apartments to one another doesn't provide much of an opportunity for improvement. Especially with there being a pool right in the middle of the courtyard. Perhaps the only real solution would be to make the buildings surrounding Barney more environmentally friendly, that way they are more sustainable and helping to improve Bloomington's sustainability.