Thanks Barry. It puts the lie to the notion that temperatures have fluctuated wildly over the millennials. Even including the ice age 600-700 thousand years ago, temperatures have remained remarkably stable. Except, of course, for the last few hundred years. r
On Wed, Oct 23, 2024 at 5:43 PM Barry Brooks via groups.io <durable= [email protected]> wrote: > Yes, climate change is natural, but we didn't have to speed it along with > unlimited consumption growth. Notice that this graph showing historic > global temperature is not breaking news, and for good reason. If people > knew how hot it got many times in earth's history, and that we are headed > back to that, we would be even crazier than we are. How long can we > continue to hide the truth to avoid accepting that social mortality is > unavoidable in any case, like personal mortality? > > Our current 60° global temperature is cold compared to the historical > record. In the last 500 million years the global temperature was near 90° > about 20% of the time. > > This 500 million year temperature graph shows that the earth can get much > hotter without our help. Also, the highest CO2 concentration in the last > 500 million years was 300 ppm. Now, we have driven the CO2 concentration to > over 400 ppm, which will soon finish melting the poles and send earth back > to the old hot house earth, stuck on hot for millions of years without ice > to reflect the heat. > > A few humans might be able to survive the 90° plus world we are headed > for, for a while. Anyway, there are 10^ⁿ other earth-like planets where > isolated intelligent life can exist briefly, briefly in that planet's > geologic time. Planets die, but life goes on. > > Note how the temperature jumped from 53 to 60, making a vertical line for > today on the graph, a record rate of rise. > > > > > > -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#33126): https://groups.io/g/marxmail/message/33126 Mute This Topic: https://groups.io/mt/109180960/21656 -=-=- POSTING RULES & NOTES #1 YOU MUST clip all extraneous text when replying to a message. #2 This mail-list, like most, is publicly & permanently archived. #3 Subscribe and post under an alias if #2 is a concern. #4 Do not exceed five posts a day. -=-=- Group Owner: [email protected] Unsubscribe: https://groups.io/g/marxmail/leave/13617172/21656/1316126222/xyzzy [[email protected]] -=-=-=-=-=-=-=-=-=-=-=-
