Nature should be preserved and kept as it is. Therefore, these architects instead of ruining nature by cutting down trees when constructing houses, they decided to incorporate the trees in their constructions.
Deforestation influence global warming, reducing the amount of water in the soil and air, soil loss and decline in biodiversity. Urbanization in a way contributes to the global deforestation. So instead of cutting down forests to build houses, we can integrate the buildings in the existing natural environment. The right thing to do is to be considerable of the nature in practicing our living habits.
These designs are the perfect examples of tree-human cohabitation.