environnental issus

Sujet du devoir

environnement change and human health
biodiversity and ecosysteme impact on our life
industry realisation consumerisem and global change

Où j'en suis dans mon devoir

i'm still looking for environnement change and i don't find the right and effisient expose right know because i can't find the best si which canhelpe me to finish these project...
so i need help
please
thank you very much to people who help me