07-31-2017, 12:27 PM
(This post was last modified: 07-31-2017, 12:31 PM by Eric the Green.)
(07-31-2017, 11:24 AM)X_4AD_84 Wrote:(07-29-2017, 09:11 PM)Eric the Green Wrote:(07-28-2017, 04:35 PM)X_4AD_84 Wrote:(07-28-2017, 11:14 AM)Eric the Green Wrote:(07-28-2017, 10:57 AM)X_4AD_84 Wrote: Correct. My guess is during the 22nd century the downward trend will resume. Then, a whole new set of issues will be faced, and those issues will truly be a humans against or challenged by nature scenario.
Issues which we are probably also now facing.
No they are different issues. Imagine for example, let me pick a number, CO2 at 200 ppm.
The issue has to be a real one before we worry about facing it. CO2 is not going down to 200 ppm at any time within the visible time horizon. If we go back to the emissions that we made before the industrial age, that will be very healthy and there will be no worries about it once the residue of CO2 from the warming is gone.
If there's a natural global cooling trend going on, it will be very gradual, as Nature's cycles usually are. And anyway, by then, even if cooling is a danger, maybe we can resume burning some CO2 to maintain the balance!
No amount of attempting to put CO2 back into the atmosphere (at least nothing economically viable) can defeat the long term trend. This is why life needs to eventually find places to migrate to, besides Earth. Earth will eventually die, biologically speaking. Of course what I refer to here is millions if not billions of years in the future.
Yes, if you're speaking millions of years. The climate danger in that case is more severe global warming, as the Sun gets larger, from what I have read, after a billion years. In all that time, we should be able to develop technologically and spiritually so that we are no longer dependent on our birth matrix; probably long before then. All that has little to do with what might happen on Earth in hundreds of years. There are other possible causes of catastrophe we will probably face before the billion-year deadline. Not only natural heating and cooling cycles, which approach gradually but might reach a sudden tipping point, but things like the Yellowstone caldera exploding and causing a virtual global winter. Would we ever have the technology to avert that danger? We probably already have the means to avert an asteroid collision.