PPEH has set out to explore what the Earth is to those in our own backyard as well as the wider Philadelphia community and beyond. It is only in understanding our collective view of the Earth that we can begin to protect it. We have crossed oceans and climbed mountains to discover what the Earth is to all those who call it home.

What is the Earth?


The Earth is:

"the past, the present, and the future."

4.54 billion years old

196.9 million square miles

7 billion humans' home

1.5 million species large


Something different to everyone


What's the Earth to you?