Books like Nature's Green Umbrella
Gail Gibbons
Nature's Green Umbrella is 32 pages, about 35 minutes at 250 words a minute.
7 books to read next
How long each takes
The Most Beautiful Roof in the World 53 min 
Welcome to the Green House 35 min 
One Day in the Tropical Rain Forest 1.2 h 
The Great Kapok Tree 41 min 
Bloomin' Rainforests 2.4 h 
About the Rain Forest 44 min 
Diário De Pilar Na Amazônia 2.6 h Bar height shows length. Estimated at 250 words a minute.