Last week, the Amazon founder Jeff Bezos, and a few more billionaires pledged $5 billion towards protecting land and water. This money was to be used to conserve biodiversity - as in, taking care that a wide variety of species of birds, animals, trees and plants thrive well. Some of us might think of managing global warming by riding bicycles instead of cars, it would serve us well to remember that protecting the earth and conserving our trees and birds and animals, are equally important. Thi...