Are We At A Point Where Any Major Disaster Could Spell The End?

[PunkMaister]

Are we now at a point where because of all the CO2 in the atmosphere if we where to either be hit by an asteroid or a Super-volcano erupting the cumulative damage between the 2 ends up making so far worse than had it happened 1000 or 300 years earlier that it would destroy the biosphere almost entirely?

What I'm trying to say is that given the level of CO2 I'm guessing that the the damage caused by any such catastrophe would be far worse because of the cumulative effect of the CO2 already present plus what such an event would produce. Am I wrong or am I into something here?

[Spock]

Not a super volcano, a basalt rift would kill us with hydrogen sulfide and large ammounts of CO2. The current CO2 levels are what we've got to worry about, extreme disasters like asteroids, however deadly are largely irrelevant.

[Pa'li Makto]

I'd say any disaster is bad enough with tensions running high..

[PunkMaister]

Originally Posted by Spock

Not a super volcano, a basalt rift would kill us with hydrogen sulfide and large ammounts of CO2. The current CO2 levels are what we've got to worry about, extreme disasters like asteroids, however deadly are largely irrelevant.

Maybe you didn't understand the OP of this thread which as if the cumulative effect of what is already present in the atmosphere plus what such a disaster would cause, would make things far worse had the current CO2 levels not being present.

You seem to be obsessed with a so called basalt rift. I've checked and all I can find is some obscure references to underwater oceanic volcanic rifts. Basalt is a volcanic rock. Now no current volcanic rift would or could produce as much ejecta in a single eruption as a Super volcano can. Hydrogen sulfide although it is produced bu volcanic eruptions geologically speaking it has never been released in the quantities you describe, not even the last super volcano eruption produced that kind of an amount. My concern would be all the methane that now lies in a frozen state in the bottom of the oceans, because a super volcano or asteroid could warm up the ocean to the the point where all that methane is released and once that happens the Earth would broil as the temperature could rise as much as 10 degrees or more.

[Human No More]

Well, Yellowstone is a dormant supervolcano which could cause huge damage to civilisation.

I don't think any one normal-scale disaster could, but a potentially huge one still could (talking an extinction-causing impact here, not really anything originating on Earth)

[Spock]

Originally Posted by PunkMaister

Maybe you didn't understand the OP of this thread which as if the cumulative effect of what is already present in the atmosphere plus what such a disaster would cause, would make things far worse had the current CO2 levels not being present.

You seem to be obsessed with a so called basalt rift. I've checked and all I can find is some obscure references to underwater oceanic volcanic rifts. Basalt is a volcanic rock. Now no current volcanic rift would or could produce as much ejecta in a single eruption as a Super volcano can. Hydrogen sulfide although it is produced bu volcanic eruptions geologically speaking it has never been released in the quantities you describe, not even the last super volcano eruption produced that kind of an amount. My concern would be all the methane that now lies in a frozen state in the bottom of the oceans, because a super volcano or asteroid could warm up the ocean to the the point where all that methane is released and once that happens the Earth would broil as the temperature could rise as much as 10 degrees or more.

I suggest you check again. It has also appeared on documentary channels, the ones you hold in such high esteem.