Category: Science

[I am working on an idea for a book. The idea has been hanging in my mind for years now. What is below is a Forward I have written for possible use. I thought I would share it in case the book does not get written.]

Astronomers tell us there are a billion stars in our Milky Way Galaxy. They tell us there are a billion galaxies. These are numbers beyond human comprehension. We cannot conceive of where the ends and the beginnings are or if they are.

Yet, here we are on what astronauts have shown us to be a beautiful, blue water planet floating in the infinity of space and orbiting around our Sun somewhere near the edge of our galaxy. We have no idea whether life, as we know it, exists anywhere else in infinity. We only guess. As far as we now know, there is no place else for our species to go. We, and the millions of other species that live with us and beside us, call Earth our home.

If we believe in God, then we must believe our home is a sacred place and a blessed gift from the Divine. It really does not matter whether we believe the Universe and Earth were created in seven days or in billions of years. Here we are. Here is now.

A curious thought crosses my mind. This is there is no sound in space. The gigantic explosions and nebulae we see with our visual or radio telescopes are silent. On Earth, we know the beauty of sound in rustling leaves blown by the breezes, in the call of birds on wing, the rolling of waves on the beach, and the crunching of dried leaves under our feet in the autumn, the sound of a water fall, of music, of voices and even of whales in the ocean. I wonder whether this will always be or whether Earth will at some time become a part of the Final Silence.

The gift of Earth to us is precious, yet we go about our daily lives behaving as if it were indestructible and limitless of resources, wildlife, fertile lands for crops, and infinite space for concrete and asphalt. Our human mantra is “growth and development” at any cost. It is expansion and domination and control. Rachael Carson poignantly pointed out in “Silent Spring” that mankind is a part of the biosphere which is beyond our control. She talked about being in balance with Nature. Dr. Durward Allen, wildlife ecologist, taught conservation of all natural resources, living and non-living, for the greatest good for the most people for the longest time. John Muir and Henry David Thoreau and countless others described the wonder of it all.

It is our sacred duty to protect and defend planet Earth from harm whether it be from within or without. Our lives and the lives of those that follow depend upon this.

According to some, the Earth has nurtured our kind for over 2 million years. She has given water, shelter, and food to countless generations like a mother to her children. Now she grieves. In the race for technology and with burgeoning numbers, we have lost connection to the Earth in consciousness and spirit. We take and take and take. We create poisons and wastes we spread on the land and water and in air. We even now tamper with the very core of life in the race for more and more. We pass to the next generation a nature that is less than we inherited. For many species, we have already created the final silence. The pace quickens.

Man has come a long way since the beginning of existence to the present. But, we are at a time now of unprecedented population growth and resource consumption, both of which continue their upward paths toward a point where Earth resources cannot forever sustain life, particularly human life, at such levels. If overshoot is great enough and the Earth’s life support systems are fatally damaged, we will inevitably ourselves reach the Final Silence.

Scientists believe there is still time for the way back. It is through leaders willing to put planet over personal gain. It is through the few who now hear voices from the past with the message that all of Creation is sacred. It is for warriors who will not be intimidated, defeated, or silenced. If we do not listen……..

To Albert Schweitzer who said…..
“Man has lost the capacity to foresee and to forestall. He will end by destroying the Earth” (a quote used in Silent Spring)

And Albert Einstein who said…….
“Everyone who is seriously involved in the pursuit of science becomes convinced that a spirit is manifest in the laws of the universe – a spirit vastly superior to that of man.”

[Reprint of article by Dr. Paul R Ehrlich; 11 July 2017]

It’s simple. It’s us. The more people there are, the more habitats we destroy. Human civilization can only survive if the population begins to shrink. One should not need to be a scientist to know that human population growth and the accompanying increase in human consumption are the root cause of the sixth mass extinction we’re currently seeing. All you need to know is that every living being has evolved to have a set of habitat requirements.

An organism can’t live where the temperature is too hot or too cold. If it lives in water, it requires not only an appropriate temperature range, but also appropriate salinity, acidity and other chemical characteristics. If it is a butterfly, it must have access to plants suitable for its caterpillars to eat. A lion requires plant-eaters to catch and devour. A tree needs a certain amount of sunlight and access to soil nutrients and water. A falciparum malaria parasite can’t survive and reproduce without Anopheles mosquitos in its habitat and a human bloodstream to infest.

The human population has grown so large that roughly 40% of the Earth’s land surface is now farmed to feed people — and none too well at that. Largely due to persistent problems with distribution, almost 800 million people to to bed hungry, and between one and two billion suffer from malnutrition. As a consequence of its booming population, Homo sapiens has taken much of the most fertile land to grow plants suitable for its own consumption. But guess what? That cropland is generally not rich in food plants suitable fo rthe caterpillars of the 15,000 butterfly species with which we share the planet. Few butterflies require the wheat, corn or rice on which humans largely depend. From the viewpoint of most of the Earth’s wildlife, farming can be viewed as “habitat destruction”. And, unsurprisingly, few species of wildlife have evolved to live on highways, or in strip malls, office buildings, kitchens or sewers — unless you count Norway rats, house mice, European starlings and German roaches. Virtually everything humanity constructs provides an example of habitat destruction.

The more people there are, the more products of nature they demand to meet their needs and wants: timber, seafood, meat, gas, oil, metal ores, rare earths and rare animals to eat or to use for medicinal purposes. Human demands cause both habitat destruction and outright extermination of wildlife. So when you watch the expansion of the human enterprise; when you see buildings springing up; when you settle down to dinner at home or in a restaurant; you are observing (and often participating in) the sixth mass extinction.

The expanding human population not only outright destroys habitats, it also alters them to the detriment of wildlife (and often of people themselves). The more people there are, the more greenhouse gases flow into the atmosphere, and the greater the impacts on wildlife that require specific temperature ranges.

And the more people there are, the more cities, roads, farm fields, fences and other barriers preventing wildlife from moving to areas of more favorable temperature or humidity in a rapidly changing climate. Less recognized, but perhaps even more dangerous to both people and wildlife, is the increasing toxification of the entire planet with synthetic chemicals. Growing populations want myriad more items of plastic that often leak toxic chemicals: more cosmetics, cleansing compounds, pesticides, herbicides, preservatives and industrial chemicals. Many of these novel chemicals mimic natural hormones, and in tiny quantities can alter the development of animals or human children, with potentially catastrophic consequences. As with climate disruption, this is one more case of human overpopulation threatening civilization.

So we don’t really need the evidence meticulously gathered and analyzed by the scientific community showing the unusual and accelerating extermination of wildlife populations — and ultimately, species — to know that human population growth is a major and growing driver of the sixth mass extinction, just as it is with the related accelerating climate disruption. It will take a long time to humanely stop that growth and start the gradual shrinkage of the human population that is required if civilization is to persist. All the more reason we should have started a half a century ago, when the problem first came to public attention.