This revealing book warns us that unless changes are made, we will face trouble by 2060. It was surprising to learn that one of the main causes of climate change has been the reduction of natural forests to make grazing land for cattle, and that we will have to reduce our consumption of animal products in the future. David Attenborough reminds us of one good achievement, the big reduction in the mass slaughter of whales which commenced in the 19th century through to the mid 20th century. He also says we will have to practice conservation of seafood in the future. An amazing book from a renowned author, now in his nineties !