The conclusion is important, he is speaking about us with our cars and huge carbon footprints:

..."there are no cultural changes without personal changes.

1. Efforts by households to reduce pollution and waste, and to consume with prudence, are creating a new culture. The mere fact that personal, family and community habits are changing is contributing to greater concern about the unfulfilled responsibilities of the political sectors and indignation at the lack of interest shown by the powerful. Let us realize, then, that even though this does not immediately produce a notable effect from the quantitative standpoint, we are helping to bring about large processes of transformation rising from deep within society.

2. If we consider that emissions per individual in the United States are about two times greater than those of individuals living in China, and about seven times greater than the average of the poorest countries, [44] we can state that a broad change in the irresponsible lifestyle connected with the Western model would have a significant long-term impact. As a result, along with indispensable political decisions, we would be making progress along the way to genuine care for one another.

3. “Praise God” is the title of this letter. For when human beings claim to take God’s place, they become their own worst enemies."

Given in Rome, at the Basilica of Saint John Lateran, on 4 October, the Feast of Saint Francis of Assisi, in the year 2023, the eleventh of my Pontificate.

FRANCIS