According to these figures, LH, the present dramatic upsurge in temp change did not start in 1975.

The carbon count upramp dates from around 1800--remember James Watt and the construction of the British rail system, etc.? The PPM count has broken out of its usual variation (270 to 285). By 1900 it had climbed to 295. By 1950, to 300. Between 1950 and 2000, it galloped up to 335.

The delta of temperatures between 1861 and 1911 was slightly cooling, but between 1861 and 1991 the trend was up to +.35 deg. F per year.

The solar-misbehavior hypthesis seems unlikely to me because of the coupling of the temp and CO2 curves. It is improbable that solar cycles cause increases in anthropic CO2 emissions, except in a minor way by making people run air conditioning. And I don't see a coupling between solar activity and the rate of change.

I'd like to see some numbers on this solar vedctor, BB. Do you have some?


A