Evidence of global climate change beyond the bounds of past experience has raised expectations of new stresses on societies around the world. (nas-sites.org)
However, there are reasons that a cat would stop using the litter box — it might not clean enough or there are new stresses in the cat's life. (hartz.com)
First, the transition into school may generate an array of new stresses for parents and children. (academic.oup.com)