Johnnie wrote on Dec 4
th, 2018 at 6:22pm:
Wiki never changed my mind, I knew all along and so does Sir Dave.
Perhaps you can give us the science by which you "know".
Oh good. Perhaps you will like the new climate scare story -
"“We know global warming is causing the winter snowpack to develop later and melt earlier,” said the paper’s first author Andrew Reinmann, an assistant professor and researcher with the Environmental Science Initiative at the Advanced Science Research Center (ASRC) at The Graduate Center, CUNY, and with Hunter College’s Department of Geography. “Our study advances our understanding of the long-term effects of this trend on northern hardwood forests–which are critical to North America’s environmental health and several industries. The experiments we conducted suggest snowpack declines result in more severe soil freezing that damages and kills tree roots, increases losses of nutrients from the forest and significantly reduces growth of the iconic sugar maple trees.”
The researchers’ 5-year-long experiment consisted of removing snowpack from designated plots during the first 4-6 weeks of winter each year between 2008 and 2012, and then comparing the resulting condition of the soil and trees (all sugar maples) in those plots to the soil and trees in adjacent plots with natural snowpack.
Their analysis found that soil frost depth reached over 30 centimeters in areas where snow cover had been removed compared to roughly 5 centimeters at control plots. The severe frost caused damage to tree roots that triggered a cascade of responses, including reduced nutrient uptake by trees, shorter branch growth, loss of nitrogen from soils into nearby waterways, and decreases in soil insect diversity and abundance. Scientists collected sample cores from sugar maple trees on their research plots and measured the width of the cores’ rings to reconstruct growth rates. They found that growth declined by more than 40 percent in response to snow removal and increased soil freezing. The trees also were unable to rebound even after snowpack removal cease"
https://www.eurekalert.org/pub_releases/2018-12/asrc-sdm112918.phpSo what they did for the experiment was remove the snowcover that existed (snow is an insulator) from groups of trees.
Then those that were bare of snow suffered frost damage. And this was supposed to show the effect of AGW. If it were AGW there wouldn't be frost, there wouldn't be snow.