Blobrana wrote:
This fact taken with the latest satellite observations show that we are living at one of the warmest periods of earths history, and that a runaway greenhouse scenario may raise the temperature even higher. But eventually this will be `buffered` by the planet and that eventually the world will get cooler , a lot cooler, dude...
The Earth does 'sink' excess CO2 in the atmosphere, and that sinking does increase in speed by the warmer the seas get. Fossil fuels are one of these natural sinks, storing biological carbon since the Carboniferous, when the climate was a lot warmer than it is now. Limestone has been storing it for even longer.
But as you know, that carbon doesn't stay trapped forever. Volcanism will release it eventually. It will be stored again, of course. But this takes
time - if the volcanism is too extensive, it will release CO2 faster than the biosphere can store it. And you also know, from the fossil record, that periods of intense volcanism also match periods of very rapid climate warming, mass extinction, and desertification.
What the burning of fossil fuels is doing now is simulating intense volcanism. We push billions of tonnes of CO2 into the atmosphere which is not being recycled and which is streaming out faster than the biosphere can store it. The last decade has not only been the hottest on record, its temperature has increased faster than at any other time in the fossil record, barring mass extinction events.
Mass extinction is already occuring due to climate change. The environment is warming. This pattern is too familar in Earth's history to simply be ignored or dismissed. Every year digs up more evidence from now and from fossils.