Stephen Hawking says mankind has 100 years left on Earth. Thanks, Steve.

rkymtnman

Well-Known Member
For anyone that thinks methane hydrates is no threat,here's a release of CO2 from a small lake in Africa. The gases are kept in solid form or dissolved in water with a combination of low temps and pressure in the ocean or lakes depths. Any change in this balance and there is a massive release.

https://en.wikipedia.org/wiki/Lake_Nyos_disaster

I think it's fair to say Mother Earth did not like the dinosaurs and does not like the humans.
 

captainmorgan

Well-Known Member
The oceans have vast reserves of methane hydrates and the idiots in the energy industry have discussed trying to extract them some how. These type of deposits can be released from just being disturbed if the pressure temp balance is near it's release point.
 

captainmorgan

Well-Known Member
A lot of these deposits are off our coast line. If one was released off the west coast a massive cloud of methane would move ashore and once it found a ignition source would become a massive fireball and burn everyone to a crisp,if it didn't ignite it would cause a lot of warming.
 

abalonehx

Well-Known Member
If mother earth had a conscience wouldn't she have gotten rid of our diseased, polluting, warring asses
a long time ago?
 

ttystikk

Well-Known Member
The guy might not be that far off base. Our understanding of the earths climate is quite primitive. If you look at what has happen and continues to accelerate in the arctic with the permafrost and the glaciers collapsing everywhere. What really scares me is methane hydrates in the seas, if the oceans warm enough there could be huge releases of methane that could literately change things overnight.
There is little doubt that climate change is accelerating, but I just don't see a temperature mark being hit that suddenly kills us all off.

If he was a scientist studying Yellowstone and said we're all dead when it blows up and it's less than ten years away, I'd find that more credible. There's a specific threat.
 
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Fogdog

Well-Known Member

https://www.washingtonpost.com/news/wonk/wp/2014/02/11/there-have-been-five-mass-extinctions-in-earths-history-now-were-facing-a-sixth/?utm_term=.3adc32e9d283


According to climate science deniers, the above chart would mean that extinction events happen all the time and are natural. So, go back to watching Family Guy.

The causes are different. but yes, until now, the events all happened due to non-man made events.

In the worst, the end-Permian,

The worst mass extinction of all time came about 250 million years ago [the Permian-Triassic extinction event]. There's a pretty good consensus there that this was caused by a huge volcanic event that went on for a long time and released a lot of carbon-dioxide into the atmosphere. That is pretty ominous considering that we are releasing a lot of CO2 into the atmosphere and people increasingly are drawing parallels between the two events.

One thing we do know from studies of past events is that the big die offs go quickly with quick changes in, you guessed it, climate change. The case for us at the cusp of the next great die-off is plausible.

Is anybody plugging ten more years to live into their retirement calculator to see if they have enough to live on until the end and so can retire?
 

ttystikk

Well-Known Member

https://www.washingtonpost.com/news/wonk/wp/2014/02/11/there-have-been-five-mass-extinctions-in-earths-history-now-were-facing-a-sixth/?utm_term=.3adc32e9d283


According to climate science deniers, the above chart would mean that extinction events happen all the time and are natural. So, go back to watching Family Guy.

The causes are different. but yes, until now, the events all happened due to non-man made events.

In the worst, the end-Permian,

The worst mass extinction of all time came about 250 million years ago [the Permian-Triassic extinction event]. There's a pretty good consensus there that this was caused by a huge volcanic event that went on for a long time and released a lot of carbon-dioxide into the atmosphere. That is pretty ominous considering that we are releasing a lot of CO2 into the atmosphere and people increasingly are drawing parallels between the two events.

One thing we do know from studies of past events is that the big die offs go quickly with quick changes in, you guessed it, climate change. The case for us at the cusp of the next great die-off is plausible.

Is anybody plugging ten more years to live into their retirement calculator to see if they have enough to live on until the end and so can retire?
Lol no I don't even have that much.

I firmly believe that we are indeed living through the sixth Great Extinction Event- and that it doesn't even have to do with climate change so much as simple human activity like habitat destruction, hunting/fishing species to extinction, etc.

The carbon dioxide caused global warming situation now unfolding is just another feature of our habitat destruction.
 

Fogdog

Well-Known Member
There is little doubt that climate change is accelerating, but I just don't see a temperature mark being hit that suddenly kills us all off.

If he was a scientist studying Yellowstone and said we all dead when it blows up and it's less than ten years away, is find that more credible. There's a specific threat.
From what I understand, global temperature mark isn't the direct cause of die-offs. In the end-Permian event, CO2 and sulfur from volcanoes triggered ocean acidification and too-fast ocean temperature rise. Even so, if the change had been slower, it would have been OK. Rapid change broke biological systems meant to work at lower temperatures and species began to die-off in a runaway event. Fewer live animals, lots of dead ones led to methane and sulfur build-up in the water, more animals died, etc. Once oceans died off the oxygen ppm dropped in the atmosphere, acid rain, methane build-up caused plants to die off and with them the animals that depend on them. Somewhere between 70% and 96% of all animal species on earth died off in that one. It is plausible that we've already created the runaway conditions similar to this event.
 
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Fogdog

Well-Known Member
A lot of these deposits are off our coast line. If one was released off the west coast a massive cloud of methane would move ashore and once it found a ignition source would become a massive fireball and burn everyone to a crisp,if it didn't ignite it would cause a lot of warming.
True, this. Not so much the massive fireball but contribution to global warming, is what I've read.

http://worldoceanreview.com/en/wor-1/ocean-chemistry/climate-change-and-methane-hydrates/

It is estimated that there could be more potential fossil fuel contained in the methane hydrates than in the classic coal, oil and natural gas reserves. Depending on the mathematical model employed, present calculations of their abundance range between 100 and 530,000 gigatons of carbon.

...

Considering that methane hydrates only form under very specific conditions, it is conceivable that global warming, which as a matter of fact includes warming of the oceans, could affect the stability of gas hydrates. There are indications in the history of the Earth suggesting that climatic changes in the past could have led to the destabilization of methane hydrates and thus to the release of methane.


I've also read of reports for that indicate a methane hydrate deposits in the area are bubbling off in northern waters.

http://www.washington.edu/news/2015/10/14/bubble-plumes-off-washington-oregon-suggest-warmer-ocean-may-be-releasing-frozen-methane/
 

esh dov ets

Well-Known Member
The guy might not be that far off base. Our understanding of the earths climate is quite primitive. If you look at what has happen and continues to accelerate in the arctic with the permafrost and the glaciers collapsing everywhere. What really scares me is methane hydrates in the seas, if the oceans warm enough there could be huge releases of methane that could literately change things overnight.
Here's a guy who thinks we got only ten years left.
well. nice knowing ya.
 

Fogdog

Well-Known Member
i think this thought leads to defeatist attitudes and does more damage where we need repair.
Climate deniers are already saying this too. One side of their mouth, they say "it's not happening" and from the other side they say "it's already too late."

Most people and much more than just a slight majority, aren't buying it.

my previous post, and I assume, yours, was tongue in cheek.
 

captainmorgan

Well-Known Member
Some of the super rich and the people connected to them are preparing. They are buying and building bug out spots all over the world, New Zealand is popular right now. I remember reading about the Bush's and the land they own in South America that is in the middle of nowhere and on top of a large aquifer,they've owned it for at least 10 years.

Looked it up, it's a little place, only 300,000 acres.
 
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ttystikk

Well-Known Member
Some of the super rich and the people connected to them are preparing. They are buying and building bug out spots all over the world, New Zealand is popular right now. I remember reading about the Bush's and the land they own in South America that is in the middle of nowhere and on top of a large aquifer,they've owned it for at least 10 years.
The Hamptons aren't a defensible position.

The problem is that the elites stealing from the rest of us and letting the Earth starve isn't a defensible position either.

They need to contribute to the country and the world in a positive way.

No one needs to make a profit building war machines.
 

captainmorgan

Well-Known Member
I think the super rich that control things behind the scenes are not wired like the average person,empathy gets in the way. My theory is they are wired like serial killers but with the main thing driving them is power and money and not just murder, not that they would have any trouble killing anyone without losing a moments sleep.
 
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