Our world is changing in very challenging ways that threaten to be overwhelming. We are facing massive overpopulation, depletion of natural resources, and climate change. Any of these alone may eliminate our very existence. Combined, the prospects look grim indeed. I find it deeply saddening to see the general lack of awareness, much less serious concern, about these issues. The selfishness of the majority of people who seek only their immediate benefits, without caring for other people, not to mention the general welfare of our planet, is mind-blowing to me. It does not bode well for the future of human existence, nor for the existence of all other life on this planet, that humanity as a whole has not been able to curb its selfish abuse of the environment.