The answer might be Janitor signs
In lines 140-150, what hasn't changed is that the father still switches off the electricity generator at 10 p.m. and goes to sleep in his study. The expression "as was custom" marks that this has not changed.
The language that shows that the father is changing can be found in lines 141, 173 and 175-176:
In line 141 we learn that he does not use certain rooms ("rooms we'd stopped using").
In line 173 we read that the father "seemed lighter" and chatted with his son.
In lines 175-176 the father says that "now he might be able to come to the end-of-the-year recital" at his child's school.
What exactly are we looking for?
A few other ways to reduce pollution could be to reduce the use of single-used plastics like water bottles, straws and utensils. To recycle properly, as it helps keeps plastic out of the ocean.
Organizing Cleanup campaigns and spreading the word, for example to help remove plastic from a local beach.
To support bans, or the adoption of them in your community. There's many municipalities where there's plastic bags bans or straw bans for example.
We should avoid products containing microbeads (tiny plastic particles), we can find them on face scrubs, toothpastes and bodywashes.
Lastly, we could definitely support organization that address these situations such as Oceanic Society, 5 Gyres, Algalita, etc
Hope this helps!
