"Scientists have shown that in the earth’s geological past, concentrations of carbon dioxide have been up to 20 times higher than they are at present and temperatures have been considerably warmer. The two most recent warming periods occurred during Roman Times from 200BC to 600 AD and Medieval Times from 900AD to 1300AD, when Greenland was green and grapes grew in England. The Little Ice Age followed.
"Current temperature trends show a warm period between 1920 and 1940, followed by a cooling phase. There was a sudden warming surge from 1976 to 1978 and another in 1998. Since then the weather has been cooler. The year 1934 has emerged as the warmest of the 20th century. This, along with the evidence of those historical warm periods, confirms that man-made greenhouse gas emissions cannot possibly be the cause of the earth’s warming.
"The very latest scientific research shows that the climate operates on a 1,500-year cycle and is driven by a complex interaction of solar activity including sunspots and cosmic rays, winds, deep ocean currents, as well as cloud and precipitation cycles..." - Unstoppable Climate Change
"Scientists have produced further compelling evidence showing that modern-day climate change is not caused by changes in the Sun's activity.
"The research contradicts a favoured theory of climate "sceptics", that changes in cosmic rays coming to Earth determine cloudiness and temperature.
"The idea is that variations in solar activity affect cosmic ray intensity.
But Lancaster University scientists found there has been no significant link between them in the last 20 years." - 'No Sun link' to climate change
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