Our Green World: Environment Studies is a children's textbook used in India. Some schools have removed one of the pages from the book because it has an experiment requiring students to kill a "small kitten."
The passage in Our Green World: Environment Studies is meant to demonstrate that air is essential for life. It reads: "Put a small kitten in each box. Close the boxes. After some time open the boxes. What do you see? The kitten inside the box without holes has died."
The book's publisher has promised it will not appear in the next edition, according to the Indian Express.
Parvesh Gupta of PP Publications said: "A parent had called us a couple of months ago and asked us to remove the text from the book because it was harmful for children. We recalled books from our distribution channel and will come out with a revised book next year."