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Climate Change & The Environment Discuss The Uninhabitable Earth at the General Discussion; this caught my eye... Not that I can't believe this as I do see where it is a possibility, just ...

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Old 07-10-2017, 05:38 PM
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Default The Uninhabitable Earth

this caught my eye... Not that I can't believe this as I do see where it is a possibility, just saying folks..

I am just posting two paragraphs in the middle of this news article. The read is very good.

Quote:

The Uninhabitable Earth

9 July 2017.

Earth has experienced five mass extinctions before the one we are living through now, each so complete a slate-wiping of the evolutionary record it functioned as a resetting of the planetary clock, and many climate scientists will tell you they are the best analog for the ecological future we are diving headlong into.

Unless you are a teenager, you probably read in your high-school textbooks that these extinctions were the result of asteroids. In fact, all but the one that killed the dinosaurs were caused by climate change produced by greenhouse gas.

The most notorious was 252 million years ago; it began when carbon warmed the planet by five degrees, accelerated when that warming triggered the release of methane in the Arctic, and ended with 97 percent of all life on Earth dead.

We are currently adding carbon to the atmosphere at a considerably faster rate; by most estimates, at least ten times faster. The rate is accelerating. This is what Stephen Hawking had in mind when he said, this spring, that the species needs to colonize other planets in the next century to survive, and what drove Elon Musk, last month, to unveil his plans to build a Mars habitat in 40 to 100 years.

These are nonspecialists, of course, and probably as inclined to irrational panic as you or I. But the many sober-minded scientists I interviewed over the past several months — the most credentialed and tenured in the field, few of them inclined to alarmism and many advisers to the IPCC who nevertheless criticize its conservatism — have quietly reached an apocalyptic conclusion, too: No plausible program of emissions reductions alone can prevent climate disaster.

Related Stories

When Did Humans Doom the Earth for Good?


Over the past few decades, the term “Anthropocene” has climbed out of academic discourse and into the popular imagination — a name given to the geologic era we live in now, and a way to signal that it is a new era, defined on the wall chart of deep history by human intervention. One problem with the term is that it implies a conquest of nature (and even echoes the biblical “dominion”).

And however sanguine you might be about the proposition that we have already ravaged the natural world, which we surely have, it is another thing entirely to consider the possibility that we have only provoked it, engineering first in ignorance and then in denial a climate system that will now go to war with us for many centuries, perhaps until it destroys us.

That is what Wallace Smith Broecker, the avuncular oceanographer who coined the term “global warming,” means when he calls the planet an “angry beast.” You could also go with “war machine.” Each day we arm it more.

............................................... Continued At Site
http://nymag.com/daily/intelligencer...or-humans.html

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Old 07-10-2017, 05:43 PM
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Default Re: The Uninhabitable Earth

Quote:
Originally Posted by mlurp View Post
this caught my eye... Not that I can't believe this as I do see where it is a possibility, just saying folks..

I am just posting two paragraphs in the middle of this news article. The read is very good.


http://nymag.com/daily/intelligencer...or-humans.html

The Search Page:

https://nortonsafe.search.ask.com/we...ctype=&tpr=121
What's missing is the fact that of the mass extinctions not one had anything to do with mankind.
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Old 07-10-2017, 05:57 PM
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Default Re: The Uninhabitable Earth

Quote:
Originally Posted by jimbo View Post
What's missing is the fact that of the mass extinctions not one had anything to do with mankind.



Good point.. But back then the shaping of our planet was still going on over millions of years, right jimbo?

Wasn't there plenty of other sources of carbon, sulfur and other gases. By the millions of tons I would add.

So what are you going to say now to deflect the possibility this could be the last
extinction period mankind will write about? Just ing jimbo.

But I had it covered I would say. As I knew you would be the first to reply. I say your a very fast reader assuming you read it all.
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Old 07-11-2017, 07:50 AM
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Default Re: The Uninhabitable Earth

Quote:
Originally Posted by mlurp View Post



Good point.. But back then the shaping of our planet was still going on over millions of years, right jimbo?

Wasn't there plenty of other sources of carbon, sulfur and other gases. By the millions of tons I would add.

So what are you going to say now to deflect the possibility this could be the last
extinction period mankind will write about? Just ing jimbo.

But I had it covered I would say. As I knew you would be the first to reply. I say your a very fast reader assuming you read it all.
And it still is. The earth has been in constant flux since the beginning. Those quantities of those other sources of carbon, sulfur, and other elements have not changed, and man will not change them.

It's entirely possible, even likely, that homo sapiens will disappear from the earth in the future. Most other species have, including dozens of homo species. What can we do about it? Very little.

The trouble with the pro doomsday crowd is that they all think of the earth in 100 year or less, roughly the life span of humans, time spans while earth thinks of itself in terms of billions of years. Even the fastest of major climate events occur over thousands of years.
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Old 07-11-2017, 03:28 PM
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Default Re: The Uninhabitable Earth

Why do you try this B.S. jimbo.. Some truths then untruths.


Quote:
Originally Posted by jimbo View Post
And it still is. The earth has been in constant flux since the beginning. Those quantities of those other sources of carbon, sulfur, and other elements have not changed, and man will not change them.

Wrong again... What was happening millions of years ago while this planet was still being formed isn't any wheres near the same today.Back then very large land areas where in flux, volcanoes pushing out billions of tons of lava and gases. And not just in one area but in many places. ([/I][/U][/I]

It's entirely possible, even likely, that homo sapiens will disappear from the earth in the future. Most other species have, including dozens of homo species. What can we do about it? Very little.

And whjat the entire point of posting this was about jimbo, thanks for re-stating it.

The trouble with the pro doomsday crowd is that they all think of the earth in 100 year or less, roughly the life span of humans, time spans while earth thinks of itself in terms of billions of years. Even the fastest of major climate events occur over thousands of years.
Gee jimbo not anyone thinks this planet is only 100 years or less old. The Jew's have the date close to 5,000 + years old.. And most (even Bible believers) people do believe it is closer to 4.something billions of years old.. Your reaching again

Thing like when land plants and trees grew in mass.. Lead to deaths in the oceans.

So lets take a look at these 5 mass extinctions;

Quote:
End Ordovician, 444 million years ago, 86% of species lost
— Graptolite 2-3 cm length

Graptolites, like most Ordovician life, were sea creatures. They were filter-feeding animals and colony builders. Their demise over about a million years was probably caused by a short, severe ice age that lowered sea levels, possibly triggered by the uplift of the Appalachians. The newly exposed silicate rock sucked CO2 out of the atmosphere, chilling the planet.
Quote:
Late Devonian, 375 million years ago, 75% of species lost
— Trilobite, 5 cm length

Trilobites were the most diverse and abundant of the animals that appeared in the Cambrian explosion 550 million years ago. Their great success was helped by their spiky armour and multifaceted eyes. They survived the first great extinction but were nearly wiped out in the second. The likely culprit was the newly evolved land plants that emerged, covering the planet during the Devonian period. Their deep roots stirred up the earth, releasing nutrients into the ocean. This might have triggered algal blooms which sucked oxygen out of the water, suffocating bottom dwellers like the trilobites.
This continues at the Site..

https://cosmosmagazine.com/palaeonto...ve-extinctions

Other Sources


https://nortonsafe.search.ask.com/we...ctype=&tpr=121
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