@lemon lover: I guess you have trouble understanding what my take on climate change is.
FOR THE RECORD:
1) I do not doubt climate change. 2) I do not doubt that humans may impact climate.
In case you are a little slow, I repeat:
1) I do not doubt climate change. 2) I do not doubt that humans may impact climate.
I am sure that nearly 100% of scientists believe climate change is real, occurring now and has been happening for billion years. I agree with them.
I do not doubt humans might affect climate. The issue is how much climate change is due to humans. The Holocene Climate Optimum, a period of warming 9,000 to 5,000 years ago, with mean temperatures above 16 degrees C, had no human component at all.
Currently, climate warming is on a hiatus, now 18 years long, where temperatures have been stable.
Humans are said to generate CO2 which is a greenhouse gas. The major source of CO2 is the oceans. As oceans warm, more CO2 is released in to the atmosphere. As we are still at the end of the last major ice age, the oceans are still warming. CO2 comprises about 0.04% of the atmosphere.
You can find graphs that show a correlation between temperature and atmospheric CO2. If the graphs are good quality and both plots are superimposed, the correlation is evident. However, oddly, temperature rise LEADS CO2 rise. This would be inconsistent with the theory that CO2 rise causes temperature rise and would seem to challenge the notion that human generated CO2 is causing warming.
The cosmic ray theory is gaining ground as the CLOUD experiments at the CERN particle accelerator indicate a relationship between cosmic rays and cloud generation. There are graphs which show an inverse correlation between cosmic ray intensity/flux and temperature. Periods of high cosmic ray activity result in an increase in cloud cover which results in lower temperatures.
Other factors affecting climate are the earth’s magnetic field, plate tectonics, volcanoes and El Nino/La Nina.
Those are some of the scientific factors. There are no doubt more.
Climate data has been fed into extremely complex computer models. These models have consistently resulted in predictions of warming, rapid warming and run away warming. Skeptics feel the models faulty. Perhaps they are as not all time series data is accurate or consistent. Historical temperature data, for example, is created using tree ring extrapolations not measured temperatures.
If you have built computerized models for predictive purposes then you know that sensitivity factors are assigned to reflect someone’s estimate what will happen. Therein lies the problem. I have built relatively simple, but still complex for the time and computer power, financial models using forecasts of commodity prices, price/volume relationships, inflation rate forecasts, exchange rate forecasts to forecast revenue streams out 20 years. I have had both magnificent successes and magnificent failures.
In short, I am also a skeptic of computer climate modeling. Or, rather, I am skeptical of the ability the scientists, the data, the assumptions, and the coding. As a ‘professional’ forecaster I refer to forecasts as ‘guesses’ or SWAG.
No climate model predicted the 18 year hiatus in temperature rise. If you google 'climategate' you can fine where actual temperature data was massaged to remove recent temperature declines.
I am not a scientist. I barely understand what they are talking about when it comes to climate change, but, I do understand time series analysis, forecasting methods, curve fitting and regression computations. I am, as our friend Michael puts it, a professional at 'lying with numbers.'
I see scientists creating hypotheses, challenging and being challenged and always seeking truth. Science is never settled. The AGW theory is that, a theory. There is just too much going on in the science to label those who are yet to buy in 'deniers' and ridicule them.
Interview: Orchid Zhang
发布者Mei Mei Cafe is great!
Orchid, and her sister, run a great place. Good food, lots of free advice on where to go and how to get there. Want a tour, need a car, a ticket? See Orchid, she's the tall beautiful lady.
Every winter since 2004 I've headed south to Banna. First stop is Mei Mei's. Just tell the taxi driver "Mei Mei Cafe" and in about 10 minutes you are there.
Now, if they just had T-Shirts