joe wrote:

John Smith wrote:

You seem to want to think Co2 is a big thing. Only, in the complete
scheme of things, has Co2 never been so low. At twice the PPM it is not
going to kill us or mankind.

It may not 'kill us', but what effects may it have? If an increase on
CO2 causes a temperature rise that results in flooding major population
areas would that be a problem to be worried about?

Plants will flourish, since plants feed
all life, either directly, or by feeding the food sources which serve as
food sources to other species ... it is a good thing.

If a climate change reduces the ability to grow those plants (rice,
wheat, corn, etc.) that are a major food source, would that be a problem
to worry about?

If the climate changes so that major agricultural areas can no longer
produce the crops needed by civilization, would that be an issue to be
worried about?


Your time frame is only going back hundreds of years, in our realistic
knowledge of it. Since the oldest civilization in existance (china), at
this time, has only been in existence for ~5,000 years, no meaningful
data can be had as to whether this is a normal cycle of the earth, or
not -- no sufficient records were kept until recent times.


There is also no evidence to say the civilization can prosper if there
is significant climate change.

So while you can say CO2 was much higher in the past, you choose to
ignore the possibility that higher CO2 levels may cause problems that
could be serious.

You should be able to find instances where folks thought adding small
amounts of chemicals to the air or water was thought to be insignificant
but later had to be dealt with at a major expense.

I'd rather err on the side of caution rather than have my head in the
sand and find out the implications were much more serious.

OK, so let us say we err on the side of caution. Thing is, the
Liberal/Democrat/Marxist/Socialist plan with regards to all of this seems to
be taxing the crap out of us.

Spend, spend, spend and tax tax tax.