Friday, June 5, 2020

The Great Filter - Is Humanity and Civilization Doomed? Recent NYT articles point that way

The Great Filter is a civilization-scale event or circumstance that would prevent a species from colonizing space or ever meeting other species — perhaps of even continuing to exist. The filter could be a chemical bottleneck that prevents the formation of RNA that jump-started evolution, or a geophysical roadblock to the production of oxygen, which enabled multicellular creatures. But the filter could also be nuclear war, or a world-destroying asteroid, or global warming, or a malevolent artificial intelligence gone amok. Or, even, a vicious pandemic. ... NYT
Can you imagine Trump's reaction if he were told a mile long meteor went off course and was headed straight for earth in 60 days? "First I have to finish building the wall" or claiming no problem it will probably hit China - or even sending up a missile to try to steer it to China.
Are we seeing an example of The Great Filter as we are in the midst of a trifecta - 1919 pandemic, 1930s great depression, 1960s civil strife? All we are missing is a BIG war like Vietnam or a BIGGER nuke war, but I have faith that Trump might manage that - with his ending nuke treaties and wanting to explode nukes again. But I have faith in Trump who I believe narcissist as he is doesn't want to see the world go on without him, thus doing anything he can to make global warming as bad as he can. It's not only the oceans rising -- people can move. It's the heat where humans can't live above a certain temp. Venus anyone? But that might take too long so let's speed it up.

There have been a number of great extinctions on earth due to natural causes - I think 5 so far - and we ourselves are viewed as the 6th extinction - some would say we are an unnatural cause but I disagree - we are just another animal and what we do to cause our own extinction is basically acting naturally - which is selfishly to favor our genes and species.


Anyway, even without a Trump, there are theories that we face extinction due to many factors. Known as The Great Filter, the theory is based on the idea that there are probably billions of planets in the universe with conditions for life - so-called Goldilocks planets.

The Fermi Paradox
Famed atomic scientist Enrico Fermi asked, "Where is everyone?" In billions of years where civilizations probably arose way before our time, there are no signs. He asked this in the early 50s and nothing has changed. But we are young - really civilization only goes back 5-6000 years and the very existence of our type of humans goes back only 70,000 years, a truly remarkable short period of time for one species to so dominate a planet - wherein lies the seeds of our destruction. View the pandemic as nature striking back. All ancient civilizations on earth all fell and our time may be at hand.

But the filter idea is that any civilization either falls due to natural events (a meteor - ask the dinosaur civilization) or inevitably creates its own conditions for failure and therefor has a shelf life - possibly a shelf life that never goes beyond before reaching the ability to reach out.

The filter idea is explored in The End of the World podcast: https://www.stitcher.com/podcast/the-end-of-the-world-with-josh-clark
which devotes each episode to another filter, some farfetched but others very real. Over population and nuclear war are obvious but he also deals with a robotic takeover where artificial intelligence wipes us out as useless.

We are on the verge of reaching out as evidenced by the recent astronaut blastoff but every day we are seeing more evidence of some coming collapse - maybe the best we do is going back to living in caves. Or Mars. I think people like Elon Musk are serious about Mars because they see a finite end coming to human civilization -- if you want to get a brilliant glimpse read Kim Stanley Robinson's massive 3 volume series - Red, Green, Blue Mars.

The NYT is fueling the concept with articles on the disappearance of species and the rain forest, and on the great filter with some intriguing ideas:

Can humans survive without bees, for instance? The unleashing of that killer wasp from Japan in this country might doom us all on its own.

Or another meteor - Some dinosaur was probably thinking he had it pretty good the day before 65m yrs ago. Can you imagine Trump's reaction if he were told a mile long meteor went off course and was headed straight for earth in 60 days? "First I have to finish building the wall" or claiming no problem it will probably hit China - or even sending up a missile to try to steer it to China.

Artificial intelligence is a threat - The Terminator where machines no longer need humans. Disease, loss of resources resources, exploding suns - even a massive sunspot could wipe us out. Nuclear war, pandemics, civil unrest, end of resources (fresh water), climate change, a leader of a powerful country who helps bring most of the above in play. There is a podcast that goes into the various collapse of civilizations here on earth - It's called Fall of Civilizations and in some cases over the top leaders played a significant role in degrading society to a tipping point. But overall I never think individuals play the dominant role -- things move in a certain direction like a glacier and can't be stopped. Like if anyone thinks going back to Paris Climate will be enough - right now a meteor seems to be the most painless.

If you are not depressed enough here are links.



Mass Extinctions Are Accelerating, Scientists Report

Five hundred species are likely to become extinct over the next two decades, according to a new study.

By


We are in the midst of a mass extinction, many scientists have warned — this one driven not by a catastrophic natural event, but by humans. The unnatural loss of biodiversity is accelerating, and if it continues, the planet will lose vast ecosystems and the necessities they provide, including fresh water, pollination, and pest and disease control.

On Monday, there was more bad news: We are racing faster and closer toward the point of collapse than scientists previously thought, according to research published in the Proceedings of the National Academy of Sciences. The extinction rate among terrestrial vertebrate species is significantly higher than prior estimates, and the critical window for preventing mass losses will close much sooner than formerly assumed — in 10 to 15 years.

“We’re eroding the capabilities of the planet to maintain human life and life in general,” said Gerardo Ceballos, an ecologist at the National Autonomous University of Mexico and lead author of the new study.

The current rate of extinctions vastly exceeds those that would occur naturally, Dr. Ceballos and his colleagues found. Scientists know of 543 species lost over the last 100 years, a tally that would normally take 10,000 years to accrue.

“In other words, every year over the last century we lost the same number of species typically lost in 100 years,” Dr. Ceballos said.

If nothing changes, about 500 more terrestrial vertebrate species are likely to go extinct over the next two decades alone, bringing total losses equivalent to those that would have taken place naturally over 16,000 years.

To determine how many species are on the brink of extinction, Dr. Ceballos and co-authors Paul Ehrlich, a conservation biologist at Stanford University, and Peter Raven, an environmentalist at the Missouri Botanical Garden, turned to population data for 29,400 terrestrial vertebrate species compiled by the International Union for Conservation of Nature.

Of those species, 515 — or 1.7 percent — are critically endangered, they found, with fewer than 1,000 individuals remaining. About half of these species comprise fewer than 250 individuals.

The researchers also examined species with populations between 1,000 and 5,000. When the scientists added those 388 species to their original analysis, they found an 84 percent geographic overlap — largely in the tropics — with species in the critically endangered group.

The loss of some will likely trigger a domino effect that sends others into a downward spiral, ultimately threatening entire ecosystems, the authors report. Dr. Ceballos compared this process to removing bricks from the wall of a house.

“If you take one brick out, nothing happens — maybe it just becomes noisier and more humid inside,” he said. “But if you take too many out, eventually your house will collapse.”

Conservationists, therefore, should consider all species with populations under 5,000 individuals to be in danger of extinction, Dr. Ceballos and his colleagues concluded.

“This is a substantial increase in what we have typically thought of as endangered,” said Daniel Blumstein, an ecologist at the University of California, Los Angeles, who was not involved in the research.

The new study also emphasizes the importance of protecting individual populations of animals, not just a species itself. Based on an analysis of the current and historical ranges of critically endangered species, the researchers calculated that more than 237,000 individual populations have disappeared since 1900.

In a previous study, Dr. Ceballos and Dr. Ehrlich similarly found that 32 percent of 27,600 vertebrate species’ populations are declining around the world.

As populations disappear from geographic areas, the species’ function there also disappears. The loss of honeybees in the United States, for example, would deal an economic blow of more than $15 billion, but the species itself would still survive elsewhere around the world.

“The population declines of common species — top predators, large-bodied herbivores like the rhino, pollinators and others — have large effects on the way ecosystems function even when they are far from extinction,” said Rebecca Shaw, chief scientist at the World Wildlife Fund, who was not involved in the research.

“Ceballos and his colleagues are telling us with scientific certainty that the survival of these species is linked to our own survival,” she added.

Dr. Ehrlich emphasized that the study’s overall findings were almost certainly a gross underestimate of the true scope of the extinction problem. Their analysis did not take plants or aquatic or invertebrate species into account, and it included only approximately 5 percent of terrestrial vertebrates for which scientists have population data.

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The findings are “in fact what one would expect in the gathering biodiversity crisis,” said Thomas Lovejoy, an ecologist at George Mason University, who was not involved in the research. The paper “should be considered a major wake-up call while there is still time to make a difference.”

That so few people are aware of the impending crisis, Dr. Lovejoy added, is a cause of the crisis itself.

Many who are aware may simply feel the loss is not consequential. “People say, ‘What the hell of a difference does it make to me?’” Dr. Ehrlich said.

But often the role of a particular plant or animal in an ecosystem has become apparent only after the species in question is gone.

Passenger pigeons, for example, once numbered in the billions. Their voracious appetite for seeds limited population growth of other seed-eating species, including white-footed mice — the natural reservoir for the bacterium that causes Lyme disease.

After the passenger pigeon’s extinction, white-footed mice populations exploded, and the risks to human health increased. The impacts of the passenger pigeon’s extinction, researchers wrote in Science, “are still being felt a century after the last passenger pigeon died.”

As humans continue to encroach on nature and wildlife, Dr. Ceballos and his colleagues warn of a cascading series of impacts — including more frequent occurrences of

new diseases and pandemics. The coronavirus that launched the pandemic originated in a wild animal, most scientists believe.

“The vaccine for Covid-19 was natural habitat,” Dr. Ceballos said. “The pandemic is a great example of how badly we’ve treated nature.”

With enough species losses, ecosystems will eventually fail, destabilizing economies and governments and triggering famine and refugee crises. But there are steps that can be taken now, Dr. Ceballos said.

Habitat loss and wildlife trade are currently responsible for the brunt of the problem, whereas climate change has yet to unleash “the full tsunami” of its impacts, Dr. Ceballos said.

To offset the most urgent wave of extinctions, he and his colleagues call for an immediate end to illegal wildlife trade.

“There’s no way this can be continued, wiping out species and putting the whole of humanity in danger,” Dr. Ceballos said. “We can solve this immediate problem.”

They also call for a halt to deforestation and a complete reform of the legal wildlife trade — one that prioritizes sustainability over profits.

“The most fundamental problem is reducing the scale of the human enterprise, especially its consumptive demands on the biosphere,” Dr. Ehrlich said.

Making these changes will require electing leaders who prioritize the environment, redistributing resources and slowing human population growth. To help organize these efforts, Dr. Ceballos and Dr. Ehrlich launched a new global initiative called Stop Extinction.

The initiative aims to provide a framework for creating new national agreements, as well as tools for educating and activating the public about the unfolding extinction crisis.

“All of us need to understand that what we do in the next five to 10 years will define the future of humanity,” Dr. Ceballos said.











  • 4 comments:

    1. Social justice mob rule is the real and immediate threat to civilization.

      ReplyDelete
    2. If police mass murdered every protester you would be cheering.

      ReplyDelete
    3. Veritas infiltrated Antifa. Members on tape say Soros and Tom Steyer are backers.

      ReplyDelete
    4. I saw that video and went to George Soros web site as suggested to sign up for my money. Waiting for my check before I go out and protest because I don't work for nothing.

      ReplyDelete

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