Yes, all very interesting, but what proportion of climate change is caused by human activity?
Right now, virtually all of it.
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I've seen estimates suggesting 'human-released' CO2 accounts for less than 1% of the total CO2 in the global carbon cycle.
Which carbon cycle is that, got some links? Human industrial activity has sent the atmosphere from 280 ppmbv to 400 ppmbv, half of it in the last 50 years......I'd call this significant.
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I suspect human activity had very little to do with the Permian–Triassic extinction.
It was the production of the Siberian traps, but it shows what global warming can do.
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The climate has been changing forever. Sometimes the globe warms. Other times it cools.
Which part of "we are heading for a condition the Earth hasn't seen for 40 million years" didn't you understand? And we'll get there in a couple of hundred years.
The next trick of our glorious banks will be to charge us a fee for using net bank!!! You are no longer customer, you are property!!!
What do you believe caused the climate to change in the past (before humans), and why has that thing suddenly stopped causing it now?
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Which carbon cycle is that, got some links? Human industrial activity has sent the atmosphere from 280 ppmbv to 400 ppmbv, half of it in the last 50 years......I'd call this significant.
Google 'how much CO2 is mad made' and you'll find a broad range of possible answers to suit any agenda (i.e. nobody actually knows for sure).
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Which part of "we are heading for a condition the Earth hasn't seen for 40 million years" didn't you understand? And we'll get there in a couple of hundred years.
The Earth is always in a condition that had never been experienced before. Nothing stays the same. The climate is in constant flux. There is nothing humans can do to prevent the climate from changing. The Earth is always (and has always been) heading for a condition not seen for 40 million years (or ever) regardless of what we do.
Translation... 'Catweasel trolling, can't back up original claim'
Original claim is that interesting that mouzealot cling to quantify impact in natural world, but cannot face inability to quantify impact in world of mouse house price.
What the "troll" about its observe? It quite a common behave of mouse. Can a Catweasel prove? No it the cannot. Can it the observe? Most a definitely.
Original claim is that interesting that mouzealot cling to quantify impact in natural world, but cannot face inability to quantify impact in world of mouse house price.
Like I said, it might be interesting if it was true.
The Earth is always in a condition that had never been experienced before. Nothing stays the same. The climate is in constant flux. There is nothing humans can do to prevent the climate from changing. The Earth is always (and has always been) heading for a condition not seen for 40 million years (or ever) regardless of what we do.
Not in a couple of hundred years it's not. Prior to modern industrialism the earth was slowly heading to another ice age (slowly cooling). Within a couple of hundred years human activity will send the general surface temperature of the Earth up by 6 C. This is something Earth hasn't been seen in 40 million years and will be detrimental to the present forms of mammalian life including us. This is not something that was occurring without human activity. I'd say the next few hundred years are the ones to worry about. The biosphere can absorb a certain amount of excess CO2, but not in the amounts humanity is creating. If the level heads to towards something like 5,000 ppmbv then a series of events will be triggered that will wipe out most complex life forms on the earth. If the CO2 in the atmosphere can be halted around 560 ppmbv, then we won't suffer too many detrimental effects. But after that enter at your own risk.
The next trick of our glorious banks will be to charge us a fee for using net bank!!! You are no longer customer, you are property!!!
I don't think you get it Shadow. The average earth surface temperature is 19C, if we could remove all the CO2 from the air then the average earth surface temperature would be minus 14C. Put more CO2 into the air and the earth will get warmer......simple like that. If CO2 gets to 1,000 ppmbv in the air, the ice caps will all melt and the Earth will be warmer than it has been in 40 million years. A factor over looked is when the CO2 gets to that level chronic illness amongst mammals will be on the rise due to acidosis of the blood. 5,000 ppmbv and you can probably kiss all complex animal life as we know it goodbye. The greatest mass extinction of animal life in the Permian era was known to be caused by Global Warming.
I've read reports about mass extinctions caused by global warming and they are just conjecture. It is very difficult to know the difference between cause and correlation in regards to these types of events. I read an article in the New Scientist that tried to link every major warming event in the past as being caused by CO2 increase. My bullshit detectors went off.
It's a bit like the police recently linking the average speed of motorists over the past decade to a decrease in the road toll. They had a nice graph showing how the average speed had gone down gradually and so had the road toll. Ok, that all seems fine but what about the contribution of improved car safety, ABS, air bags etc. You could have just as easily showed the increase in the % of cars with air bags or ABS and plotted that against the road toll. But the police had their agenda of justifying speed cameras so they chose speed.
In regards to the figures concerning the contribution of CO2 to the current warming of our atmosphere, I would be very interested if you could point me in the right direction. The one thing that seems to be lacking in the current debate is specific scientific experiments illustrating how solar energy is trapped by CO2 and the precise effect it has when its concentration changes.
Prior to modern industrialism the earth was slowly heading to another ice age (slowly cooling). Within a couple of hundred years human activity will send the general surface temperature of the Earth up by 6 C. This is something Earth hasn't been seen in 40 million years and will be detrimental to the present forms of mammalian life including us.
An ice age would be pretty detrimental too, but we would adapt, evolve and survive, in the same way we will adapt, evolve and survive in a warmer planet.
We can't prevent the climate from changing. It's better to adapt to the inevitable changes, rather than engage in futile efforts to prevent change.
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This is not something that was occurring without human activity.
What do you believe caused the climate to change prior to human activity, and why do you believe that thing has stopped causing change now?
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