Why did Geoff Green shift his focus to taking students on polar expeditions?

Geoff Green shifted his focus to taking students on polar expeditions because he recognized that young people are more receptive to change and have the potential to become future leaders in environmental conservation. Unlike wealthy tourists, who may visit the polar regions purely for adventure, students are more likely to understand and internalize the significance of these fragile ecosystems. By exposing students to the stark realities of climate change in places like Antarctica, Green hoped to inspire them to advocate for the environment and contribute to meaningful action for a sustainable future.

This question related to Chapter 3 English Vistas Class 12th NCERT.
From the Chapter 3. Journey to the End of the Earth.
Give answer according to your understanding.