" Second, we must reduce the unsustainable lifestyles of the affluent. Let’s face it, so many people have way more stuff than they need—or even want. “Third, we must eliminate corruption, for without good governance and honest leadership, we cannot work together to solve our enormous social and environmental challenges. “And finally, we must face up to the problems caused by growing populations of humans and their livestock. There are over seven billion of us today, and already, in many places, we have used up nature’s finite natural resources faster than nature can replenish them. And by 2050 there will apparently be closer to ten billion of us. If we carry on with business as usual, that spells the end of life on Earth as we know it. "

― Jane Goodall , The Book of Hope: A Survival Guide for Trying Times