Most humans these days are so far removed from the natural environment that they simply do not care about it. Most people will never see a polar bear or grizzly bear in the wild, so why would they care? Humans go from their cars with their cell phones,to their condos. with no interaction with the natural world. Most children are not playing in their yards, they are in front of T.V.'s and computers.
The next generation has to be taught to value the natural world, even if it does not have any monetary value to us. That EVERY animal and plant has a right to the good life, such as we have created for ourselves.
My deep concern is that the world has reached the tipping point, where it is too late for many species. Do I want to live on a planet without song birds, or killer whales, but overrun with humans. Not a chance!!