This is straight from NPR.ORG:
Sometimes, it seems like there’s no hope for the planet. Thousands of species go extinct every year, and climate change is closing in. But famed biologist Jane Goodall says she refuses to give up.
In her latest book she writes, “There are surely plants and animals living in the remote places beyond our current knowledge. There are discoveries yet to be made.”
And, she says, there are species that have been pulled back from extinction by dedicated environmentalists.
The book is a collection of stories about those species and a celebration of the spirited efforts that saved them. Goodall tells Weekend All Things Considered Host Guy Raz that “if we think about only the downside of it, then we lose all hope, and then we are so discouraged that we don’t do anything.” (This was written by Noah but I can't find his link..)