There's a very interesting post over at Roger Pielke, Sr.'s blog, about precisely this.
If climate chage is your bag, baby, RTWT.
Thus the rate of temperature rise during the last 200 years is about +1°C/200 years, + 0.5°C/100 years, which is about 5/6 of the rate of increase (+0.6°C/100 years) during the last century. Therefore, it may be inferred that the CO2 contribution was about +0.1°C during the last century. There was no obvious break in the rate of temperature rise during the last 150~200 years, so it is likely that the recovery from the LIA is continuing to the present. Sea level rise is approximately linear (1.7mm/year or less) from about 1850, to the present. The retreat of many glaciers in the world began from about 1800-1850, not after 1946, when CO2 began to increase rapidly. When discussing the present warming, we should not ignore the LIA and its recovery.
The only complication is that the multi-decadal oscillation, of the amplitude ~0.2°C and a period of about 60 years, is superposed on the linear change. It peaked in about 1940 and 2000. After 1940, the temperature change was negative until 1975, so a similar negative trend may continue until about 2030. This may explain the present halting of the temperature rise. The inferred temperature increase by 2100 is about + 0.5°C±0.2°C, depending on the phase of the multi-decadal oscillation.
Tagged with "junk science" because I don't have a tag for "non-junk science".