Chapter 1:

Images: 

wes lewis on Unsplash

Environmental Protection Agency, 2022

Mohamad Sameh on Unsplash

ROBIN WORRALL on Unsplash

Chapter 2: 

Images: 

Photo by pine watt on Unsplash

Foto von Liana S auf Unsplash

Chapter 3:

Images: 

Illustration by Alghozy on Unsplash

Illustration by Sayyam Abbasi on Unsplash

Image by Being Organic in EU on Unsplash

Conclusion: 

Images: 

Image by Ryoji Iwata on Unsplash