THE SECRET LIFE OF PLANTS

"Without plants we would neither breathe nor eat. On the undersurface of every leaf a million movable lips are engaged in devouring carbon dioxide and expelling oxygen. All together, 25 million square miles of leaf surface are daily engaged in this miracle of photosynthesis, producing oxygen and food for man and beast"

an excerpt taken from the introduction of Peter Tompkins & Christopher Bird's great explorative work of plants and their relation to mankind