Dave wrote:
Be careful regarding 1750 bce.

That predates the industrial revolution by at least 100 years. This
indicates that natural factors are at work.

Petroleum products date from the 1880s. This indicates that natural
factors are at work.

Automobiles date from the early 1910s. This indicates that natural
factors are at work.

Deforestation dates from the mid 1950s. This indicates that natural
factors are at work.

The period of 1700 to 1750 is acknowledged as the end of the 'Little Ice
Age', not the beginning of manmade [man contributed] GW.

There are so many unknown contributors to the earth warming and cooling
cycles that blaming CO2 and other 'greenhouse gases' for the major cause
is just irresponsible.

No it isn't - or at least look at your statement for a second.

Greenhouse gases are not responsible for the majority of atmospheric
heat retention. Water vapor is. And there isn't a lot we can do about that.

You are redefining my argument. I am saying CO2 and other gases such as
methane, which do indeed represent a portion of the heat retention, are
present as a greater percentage that they were in the past.

I'm also saying that the additions are such that an increase in the
atmosphere's heat retention capacity should be seen. Nothing odd about
that. It can be shown experimentally.

Then the main thing I am saying is that if it isn't, then WHY isn't it?
If we just say "we don't know", and can offer nothing except calling
people who think that global warming might exist, and offer evidence,
and our own evidence consists of insults and rhetoric - well that is
what I consider irresponsible.


IMO, GW = K1*d(solar activity)/dt + K2*d(volcanic activity)/dt + K3*d(El
Nino)/dt + K4*d(La Nina)/dt + K5*d(deforestation)/dt + K6*d(radio carbon
decay)/dt + K7*d(many other factors)/dt + Kn*d(n)/dt ...


What is known is that the earth warms and cools. Why? That is still open
to discovery.

Lots of reasons. Precession, Solar output, volcanic action, maybe a
stray asteroid or two. CO2 Methane, albedo.


PS: Most Christian Clergy of major denominations agree that the cosmos
was formed between 15 and 20 billion years ago. The 4004 bce calculation
is incorrect and is the result of poor biblical scholarship.

My bible in the hallway shelf says 4004 b.c.

- 73 de Mike KB3EIA -