BeardedBruce:

1. Global warming is real.

Glad to see you haven't completely divorced from reality.

2. The probable cause is flutuation in the solar output- Or do you think that the CO2 here on earth is what is changing the Red Spott on Jupiter?

The ol' RW fallacy of "binary thinking" strikes again. "You're either with us or you're with the Terra-ists"....

There is no one "cause" of global climate. The trick is to tease out and identify the contributing factors and relative contributions.

If I have $1005 gross after inventory costs, and if I have $1000 rent and salaries, I make $5. But if my taxes (of all kinds) go from just $3 to $8, I go from a $2 net to a (-)$3 net loss, a -150% change in my balance each month, and a severe change in status. But even a 1% change in that rent and salary swamps even that, as does the same in the gross after inventory. Even little things make a difference, and small canges in big things do too, to the bottom line.

Even if the solar irradiance is changing slightly, if we can reduce heating from CO2 significantly (note: not eliminate it), we can still have a marked effect on the bottom line. And though the bottom line per year may not be alarming on that time frame, if we look at the effect of a continued change in the same direction over many years, we may not like where we're going.

That being said, the contribution to the change in temperature is estimated to be over 50% anthropogenic (and solar irradiance factors are less), and if we can curtail that component (even though we can do less about solar output), we can effect big changes in the end mean teperatures in the middle future.

Cheers,