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Scientists debate whether hunting, farming, smallpox or the nuclear bomb define the start of irreversible human impacts on our planet
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Sam Wormley
Apr 9, 2015, 4:11:25 PM4/9/15
to
Scientists debate whether hunting, farming, smallpox or the nuclear bomb
define the start of irreversible human impacts on our planet
> http://www.scientificamerican.com/article/did-the-anthropocene-begin-in-1950-or-50-000-years-ago/
> There are no more woolly mammoths, woolly rhinos or giant ground
> sloths. Around 50,000 years ago the biggest land animals in the world
> began to disappear. The number-one suspect: Homo sapiens. Hunting
> combined with the burning of landscapes in places like Australia seem
> to be the main reason there are no more giant kangaroos, along with
> these other big animals.
>
> The lethal pairing of hunting and burning is just one of the ways
> humans have been changing the world for millennia. Another is
> planting crops such as corn or wheat, which now cover most of the
> world's arable land. Chickens, cows and pigs have become the dominant
> megafauna, thanks to ranching and herding. Forests have been cleared
> to make room for agriculture and the mass expansion of the rice paddy
> may have led to enough greenhouse gas emissions to stave off a long
> cool-down into an ice age starting 5,000 years ago.
>
> Each of these world-changing actions should be considered when
> choosing a start date for the Anthropocene—a potential new geologic
> epoch that begins when humankind started significantly altering
> Earth—according to a new report published in Science on April 3. So
> should more recent human inventions, such as widespread burning of
> coal or detonation of the atomic bomb. Given the long spans of time
> separating each of these possibilities, "we suggest simply using the
> term 'anthropocene' informally," says William Ruddiman, a
> "semiretired" paleoclimatologist at the University of Virginia and
> lead author of the new report. That would "allow room to recognize
> the millennia-long, rich history of anthropogenic changes," he says.
--
sci.physics is an unmoderated newsgroup dedicated to the discussion
of physics, news from the physics community, and physics-related
social issues.
define the start of irreversible human impacts on our planet
> http://www.scientificamerican.com/article/did-the-anthropocene-begin-in-1950-or-50-000-years-ago/
> There are no more woolly mammoths, woolly rhinos or giant ground
> sloths. Around 50,000 years ago the biggest land animals in the world
> began to disappear. The number-one suspect: Homo sapiens. Hunting
> combined with the burning of landscapes in places like Australia seem
> to be the main reason there are no more giant kangaroos, along with
> these other big animals.
>
> The lethal pairing of hunting and burning is just one of the ways
> humans have been changing the world for millennia. Another is
> planting crops such as corn or wheat, which now cover most of the
> world's arable land. Chickens, cows and pigs have become the dominant
> megafauna, thanks to ranching and herding. Forests have been cleared
> to make room for agriculture and the mass expansion of the rice paddy
> may have led to enough greenhouse gas emissions to stave off a long
> cool-down into an ice age starting 5,000 years ago.
>
> Each of these world-changing actions should be considered when
> choosing a start date for the Anthropocene—a potential new geologic
> epoch that begins when humankind started significantly altering
> Earth—according to a new report published in Science on April 3. So
> should more recent human inventions, such as widespread burning of
> coal or detonation of the atomic bomb. Given the long spans of time
> separating each of these possibilities, "we suggest simply using the
> term 'anthropocene' informally," says William Ruddiman, a
> "semiretired" paleoclimatologist at the University of Virginia and
> lead author of the new report. That would "allow room to recognize
> the millennia-long, rich history of anthropogenic changes," he says.
--
sci.physics is an unmoderated newsgroup dedicated to the discussion
of physics, news from the physics community, and physics-related
social issues.
ji...@specsol.spam.sux.com
Apr 9, 2015, 6:01:05 PM4/9/15
to
Sam Wormley <swor...@gmail.com> wrote:
> Scientists debate whether hunting, farming, smallpox or the nuclear bomb
> define the start of irreversible human impacts on our planet
An utterly pointless debate as the planet will last billions of years
> Scientists debate whether hunting, farming, smallpox or the nuclear bomb
> define the start of irreversible human impacts on our planet
while it is highly unlikely that humans will last that long thus there
is no such thing as "irreversible human impacts".
Even the effects of a global thermonuclear war would be gone in billions
of years.
And the whole thing has nothing to do with physics.
--
Jim Pennino
Sesiom
Apr 9, 2015, 6:28:35 PM4/9/15
to
On 4/9/2015 3:11 PM, Sam Wormley wrote:
> Scientists debate whether hunting, farming, smallpox or the nuclear bomb
>
> Scientists debate whether hunting, farming, smallpox or the nuclear bomb
>
>> There are no more woolly mammoths, woolly rhinos or giant ground
>> sloths. Around 50,000 years ago the biggest land animals in the world
>> began to disappear. The number-one suspect: Homo sapiens. Hunting
>> combined with the burning of landscapes in places like Australia seem
>> to be the main reason there are no more giant kangaroos, along with
>> these other big animals.
>>
>> The lethal pairing of hunting and burning is just one of the ways
>> humans have been changing the world for millennia. Another is
>> planting crops such as corn or wheat, which now cover most of the
>> world's arable land. Chickens, cows and pigs have become the dominant
>> megafauna,
I vote Chickens !!!!!!!!!!!!
>> sloths. Around 50,000 years ago the biggest land animals in the world
>> began to disappear. The number-one suspect: Homo sapiens. Hunting
>> combined with the burning of landscapes in places like Australia seem
>> to be the main reason there are no more giant kangaroos, along with
>> these other big animals.
>>
>> The lethal pairing of hunting and burning is just one of the ways
>> humans have been changing the world for millennia. Another is
>> planting crops such as corn or wheat, which now cover most of the
>> world's arable land. Chickens, cows and pigs have become the dominant
>> megafauna,
reber g=emc^2
Apr 9, 2015, 9:26:09 PM4/9/15
to
Microbes clean up all human waste,and that includes the plastic we throw in the ocean.Its there planet,and that is why they kill us. TreBert
Sam Wormley
Apr 9, 2015, 9:35:00 PM4/9/15
to
On 4/9/15 8:26 PM, reber g=emc^2 wrote:
> Microbes clean up all human waste,and that includes the plastic we throw in the ocean.
What make you think microbes clean up plastic? We don't
> Microbes clean up all human waste,and that includes the plastic we throw in the ocean.
see it happening anywhere.
ji...@specsol.spam.sux.com
Apr 9, 2015, 11:01:05 PM4/9/15
to
--
Jim Pennino
HVAC
Apr 10, 2015, 6:15:38 AM4/10/15
to
--
Cut off one head, two more shall take its place.
HAIL HYDRA!
https://www.youtube.com/watch?v=FZcG5UOY224
Sam Wormley
Apr 10, 2015, 8:58:15 AM4/10/15
to
ocean bacteria. What a relief!
ji...@specsol.spam.sux.com
Apr 10, 2015, 12:16:05 PM4/10/15
to
In sci.physics HVAC <Mr....@gmail.com> wrote:
> On 4/9/2015 10:34 PM, ji...@specsol.spam.sux.com wrote:
>> Sam Wormley <swor...@gmail.com> wrote:
>>> On 4/9/15 8:26 PM, reber g=emc^2 wrote:
>>>> Microbes clean up all human waste,and that includes the plastic we
>>>> throw in the ocean.
>>>
>>> What make you think microbes clean up plastic? We don't
>>> see it happening anywhere.
>>
>> Wrong again, ass hat, though I am amazed he got one right.
>
>
> Even a blind pig gets a truffle every now and again?
A broken clock is right twice a day...
> On 4/9/2015 10:34 PM, ji...@specsol.spam.sux.com wrote:
>> Sam Wormley <swor...@gmail.com> wrote:
>>> On 4/9/15 8:26 PM, reber g=emc^2 wrote:
>>>> Microbes clean up all human waste,and that includes the plastic we
>>>> throw in the ocean.
>>>
>>> What make you think microbes clean up plastic? We don't
>>> see it happening anywhere.
>>
>> Wrong again, ass hat, though I am amazed he got one right.
>
>
> Even a blind pig gets a truffle every now and again?
--
Jim Pennino
ji...@specsol.spam.sux.com
Apr 10, 2015, 12:16:05 PM4/10/15
to
Sam Wormley <swor...@gmail.com> wrote:
> On 4/9/15 9:34 PM, ji...@specsol.spam.sux.com wrote:
>> Sam Wormley <swor...@gmail.com> wrote:
>>> On 4/9/15 8:26 PM, reber g=emc^2 wrote:
>>>> Microbes clean up all human waste,and that includes the plastic we
>>>> throw in the ocean.
>>>
>>> What make you think microbes clean up plastic? We don't
>>> see it happening anywhere.
>>
>> Wrong again, ass hat, though I am amazed he got one right.
>>
>
> Thank goodness, all that ocean pollution is being taken care of by
> ocean bacteria. What a relief!
Yes, eventually, just like all the land "pollution".
> On 4/9/15 9:34 PM, ji...@specsol.spam.sux.com wrote:
>> Sam Wormley <swor...@gmail.com> wrote:
>>> On 4/9/15 8:26 PM, reber g=emc^2 wrote:
>>>> Microbes clean up all human waste,and that includes the plastic we
>>>> throw in the ocean.
>>>
>>> What make you think microbes clean up plastic? We don't
>>> see it happening anywhere.
>>
>> Wrong again, ass hat, though I am amazed he got one right.
>>
>
> Thank goodness, all that ocean pollution is being taken care of by
> ocean bacteria. What a relief!
--
Jim Pennino
reber g=emc^2
Apr 10, 2015, 1:54:54 PM4/10/15
to
Sam Wormley
Apr 10, 2015, 2:11:59 PM4/10/15
to
On 4/10/15 11:03 AM, ji...@specsol.spam.sux.com wrote:
> Sam Wormley <swor...@gmail.com> wrote:
>> On 4/9/15 9:34 PM, ji...@specsol.spam.sux.com wrote:
>>> Sam Wormley <swor...@gmail.com> wrote:
>>>> On 4/9/15 8:26 PM, reber g=emc^2 wrote:
>>>>> Microbes clean up all human waste,and that includes the plastic we
>>>>> throw in the ocean.
>>>>
>>>> What make you think microbes clean up plastic? We don't
>>>> see it happening anywhere.
>>>
>>> Wrong again, ass hat, though I am amazed he got one right.
>>>
>>
>> Thank goodness, all that ocean pollution is being taken care of by
>> ocean bacteria. What a relief!
>
> Yes, eventually, just like all the land "pollution".
And human pollution (i.e, humans)
> Sam Wormley <swor...@gmail.com> wrote:
>> On 4/9/15 9:34 PM, ji...@specsol.spam.sux.com wrote:
>>> Sam Wormley <swor...@gmail.com> wrote:
>>>> On 4/9/15 8:26 PM, reber g=emc^2 wrote:
>>>>> Microbes clean up all human waste,and that includes the plastic we
>>>>> throw in the ocean.
>>>>
>>>> What make you think microbes clean up plastic? We don't
>>>> see it happening anywhere.
>>>
>>> Wrong again, ass hat, though I am amazed he got one right.
>>>
>>
>> Thank goodness, all that ocean pollution is being taken care of by
>> ocean bacteria. What a relief!
>
> Yes, eventually, just like all the land "pollution".
Sam Wormley
Apr 10, 2015, 2:14:01 PM4/10/15
to
On 4/10/15 12:54 PM, reber g=emc^2 wrote:
> Sam I read that about microbes eating plastic in ocean.Its in a book Sam so it must be true.
Books get outdated pretty quickly... and there are a lot of books
> Sam I read that about microbes eating plastic in ocean.Its in a book Sam so it must be true.
that are just plain wrong. The final arbiter is the hard data of
observation and experiment.
Sesiom
Apr 10, 2015, 2:39:12 PM4/10/15
to
On 4/10/2015 1:13 PM, Sam Wormley wrote:
> On 4/10/15 12:54 PM, reber g=emc^2 wrote:
>> Sam I read that about microbes eating plastic in ocean.Its in a book
>> Sam so it must be true.
http://news.discovery.com/earth/oceans/plastic-eating-microbes-help-marine-debris-sink-140619.htm
> On 4/10/15 12:54 PM, reber g=emc^2 wrote:
>> Sam I read that about microbes eating plastic in ocean.Its in a book
>> Sam so it must be true.
Marine microbes digest plastic
http://www.nature.com/news/2011/110328/full/news.2011.191.html
Welcome To The Plastisphere: The New World Of Microbes Living On Ocean
Plastic
Scientists have discovered that all the garbage in our ocean has created
a new community of microbes that live on our waste. What does this mean
for our ocean’s ecosystem?
http://www.fastcoexist.com/1682478/welcome-to-the-plastisphere-the-new-world-of-microbes-living-on-ocean-plastic
>
> Books get outdated pretty quickly... and there are a lot of books
> that are just plain wrong. The final arbiter is the hard data of
> observation and experiment.
HVAC
Apr 10, 2015, 4:18:00 PM4/10/15
to
On 4/10/2015 12:01 PM, ji...@specsol.spam.sux.com wrote:
> I
> I
>>>
>>> Wrong again, ass hat, though I am amazed he got one right.
>>
>>
>> Even a blind pig gets a truffle every now and again?
>
> A broken clock is right twice a day...
The early bird gets the worm, but the second mouse gets the cheese.
>>> Wrong again, ass hat, though I am amazed he got one right.
>>
>>
>> Even a blind pig gets a truffle every now and again?
>
> A broken clock is right twice a day...
HVAC
Apr 10, 2015, 4:20:25 PM4/10/15
to
On 4/10/2015 1:54 PM, reber g=emc^2 wrote:
>
> Sam I read that about microbes eating plastic in ocean.Its in a book Sam so it must be true.They clean the Earth.They gave all life to Earth.They keep all life on Earth alive. Humans would be dead in 8 days if they did not help our gut to digest food. All of this I read about 2 years ago by a lady auther. Treb agrees 100% TreBert
It's gonna suck when Bert dies.
>
> Sam I read that about microbes eating plastic in ocean.Its in a book Sam so it must be true.They clean the Earth.They gave all life to Earth.They keep all life on Earth alive. Humans would be dead in 8 days if they did not help our gut to digest food. All of this I read about 2 years ago by a lady auther. Treb agrees 100% TreBert
Sam Wormley
Apr 10, 2015, 4:44:29 PM4/10/15
to
On 4/10/15 3:21 PM, HVAC wrote:
> On 4/10/2015 1:54 PM, reber g=emc^2 wrote:
>>
>> Sam I read that about microbes eating plastic in ocean.Its in a book
>> Sam so it must be true.They clean the Earth.They gave all life to
>> Earth.They keep all life on Earth alive. Humans would be dead in 8
>> days if they did not help our gut to digest food. All of this I read
>> about 2 years ago by a lady auther. Treb agrees 100% TreBert
>
>
> It's gonna suck when Bert dies.
>
>
I have already experienced the passing of a least three folks I met
> On 4/10/2015 1:54 PM, reber g=emc^2 wrote:
>>
>> Sam I read that about microbes eating plastic in ocean.Its in a book
>> Sam so it must be true.They clean the Earth.They gave all life to
>> Earth.They keep all life on Earth alive. Humans would be dead in 8
>> days if they did not help our gut to digest food. All of this I read
>> about 2 years ago by a lady auther. Treb agrees 100% TreBert
>
>
> It's gonna suck when Bert dies.
>
>
on USENET -- One in sci.geo.satellite-nav and two from sci.physics.
(sigh)
Alexander Abian, became a true crackpot, but he was a mathematics
professor friend of mine whom I could banter with in person.
I wonder whatever happened to Aladar Stolmer (tired light advocate).
I suspect Donald Shead bit the dust some years ago.
Tom Potter hasn't made an appearance for a while -- his web pages
are still up.
ji...@specsol.spam.sux.com
Apr 10, 2015, 6:16:05 PM4/10/15
to
ass hat, and the fact that you do goes a long way in explainging your
agenda.
--
Jim Pennino
HVAC
Apr 11, 2015, 6:51:33 AM4/11/15
to
On a lighter note, Treb will still be with us and I'm sure he will post
from time to time. (winkie face) In this manner Bert will live forever!
olli...@gmail.com
Jul 21, 2020, 8:58:18 AM7/21/20
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