Why Have We Focused on Personal Actions? 

The following quote can help explain.  Please note the author.

“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.

Apostolic Exhortation – Laudate deum of the Holy Father Francis to all people of good will on the climate crisis.