Final answer:
The author of the article illustrates changes enacted to help young people understand the natural world through conferences, rallies, and political action.
Step-by-step explanation:
The author of "We Live on Planet A: Young People Rally for Their Rights" illustrates the idea that changes have been enacted to help young people understand how the natural world works by mentioning conferences held in New York City and Paris, using the rally outside of India's Ministry of Housing as an example, and by noting that young people asked Alaska's politicians to declare a climate change emergency.