Consider the following excerpt from a speech by a prominent environmental activist. In this selection, the author discusses the impact of climate change on future generations and urges action to prevent further damage to the planet. Analyze how the author’s writing style contributes to the effectiveness of the argument.

Excerpt from Speech:
"We stand at a precipice. Each day that passes without decisive action brings us closer to an irreversible tipping point. Our children and grandchildren will pay the price for our inaction, and it's not just a financial burden; it's a legacy of despair, a world in turmoil where they mourn the loss of what we took for granted. Let us rise and act with urgency, guided not by fear, but by hope."

In your response, focus on the author’s choice of diction, imagery, and sentence structure. Use evidence from the excerpt to support your analysis.