Hermione knew she was going to like working here, everyone was so nice and friendly.."Yes, we are both on the committee of the three R's... Reduce, Re-use, Recycle......I love the environment and we need to educate the magical community about the dangers to the environment"..Hermione had been doing some research on how the muggles were dealing with the environmental problems they had...

But of course both the Muggle and Magical community share the same air - so mirroring what the muggles were doing would surely be important in protecting the environment.