Can we see some proof on those claims?
The solar cycle fits perfectly in with the climate cycles of the past 8,000 years within the Holocene, so your really going to tell me the strongest scientific support we have for the little ice age to med evil warm period is something you don't even support. Hell when I was a skeptic I would defend it to my death---still will. You people like to say ITS THE SUN!!! ITS the ******* SUN on all your boards. The roman, mid evil, little ice age, which was like 3 solar minimums over 500 or so years and the Dalton were all solar caused.
This shows that from 1860 about the end of the dalton straight up through 1940's-1950's time frame that much of the warming was caused by solar tsi increasing. Since the global temperature and tsi has been moving apart.
Global temperature (red, NASA GISS) and Total solar irradiance (blue, 1880 to 1978 from Solanki, 1979 to 2009 from PMOD).
This my friends and wirebender is what I was saying about variable z. It is moving away from each other=natural forcing is not causing the warming today.
PMOD TSI
Figure 2: Total Solar Irradiance as measured by satellite from 1978 to 2010
Solar activity & climate: is the sun causing global warming?
This is where I got the data from 1880-1940 for the sun/natural climatic warming.
"We can confirm this by comparing the calculation to empirical observations. From 1900 to 1950 the Earth's surface temperature warmed by about 0.4°C. Over that period, humans increased the amount of carbon dioxide in the atmosphere by about 20 parts per million by volume. This corresponds to an anthropogenic warming of:
dT = λ*dF = 5.35*(0.54 to 1.2°C/[W-m-2]*ln(310/295) = 0.14 to 0.32°C with a most likely value of 0.22°C.
Therefore, the solar forcing combined with the anthropogenic CO2 forcing and other minor forcings (such as decreased volcanic activity) can account for the 0.4°C warming in the early 20th century, with the solar forcing accounting for about 40% of the total warming. Over the past century, this increase in TSI is responsible for about 15-20% of global warming (Meehl 2004). But since TSI hasn't increased in at least the past 32 years (and more like 60 years, based on reconstructions), the Sun is not directly responsible for the warming over that period."
Ok, Ok it was 40%, but I believe it maybe a lot more(60-70 percent in my opinion).
What turned me is the fact that I believed that the solar grand minimum that we're in---yes this is the lowest combined min and max since 1908-1913 event. In the first cycle as one of my charts posted on one of these threads show is following the first cycle of the dalton nicely.
Here is a sun spot graph showing the later part of the little ice age
Wow, this shows the as I said above with the little ice age and the med evil. The med evil warm period!!!
Finally for the past 10k years
Wow, holy crap it matches the temperature data we have for that period and it matches the sun cycles. You would have to be blind not to see sun cycles=temperature within the natural set up of things.
But back again to what turned me...
What turned me away from skepticism of any global warming---yes I was a total believer in the forces of natural forcing and laughed at any idea global warming, but past 5-6 years have shown me that it is NOT cooling when it supposed to be. You can't spit in the face of what I shown you above because that is the facts. Something is causing z. So I've slowly moved and joined the nut case warmers. The z is the moving away of the natural to temperature ratio.