Gordon wrote:
When was the Earth hotter and what was the results? Are you talking
Dinosaur age? Just curious. It's fact, man has prospered during warm
spells.
G



While your conclusion was not my point, it is correct. Nevertheless,
human life is not going to disappear from this planet because of
global climate change. Modern humans have existed on this planet for
over 200,000 years. In all that time, do you think we have not seen
temperatures much hotter, and much colder, than we now experience?

Some areas may become less habitable. Other areas may become more
habitable. Sea levels will continue to rise (as they've been doing for
12,000 years) and some areas will receive more rainfall while others
receive less. The error lies in thinking that the Earth must remain
changeless because we're here and we (some of us) like the status quo.
Sealevel must remain where it is because I built a house on the beach!
Help! A global catastrophe approaches!

That life which refuses to adapt gets a swimming lesson.


Gordon,

It isn't just the absolute temperature, it is also the RATE OF CHANGE.
Clearly Earth is under stress due to our population level. The
population has got to where it is only because of the Green Revolution,
which is allowed by cheap energy. The old example is bacteria in a
petri dish.

So anyway, Earth is under stress. Humans are under increasing stress.
The cheap energy is going away. Now we have to adjust to a warmer
climate in a very short time. So it is the cumulative effects.

Then, when we look back we say "Well this or that animal survived this
or that temperature/climate." However we do NOT note that not ALL
species survived. Witness the dinos.

And others argue "Humanity will survive." Quite possibly true. Maye
2-billion, maybe 1-billion, maybe 100 million. No one knows. The
transition sounds kinda bleak.

As they say in financial fields, past gains are no guarantee of future
returns.

Or, its not the fall, its the sudden stop!