"Many of the world’s top scientists have challenged his research. Dennis vanEngelsdorp called Lu’s first study “an embarrassment” while Scott Black, executive director of the bee-hugging Xerces Society for Invertebrate Conservation, characterized it as fatally flawed, both in its design and conclusions. University of Illinois entomologist May Berenbaum, who chaired the National Academy of Sciences 2007 National Research council study on the Status of Pollinators in North America called it “effectively worthless” to serious researchers. “The experimental design and statistical analysis are just not reliable,” she said."
As far as cold in Europe, cherry picking a few UK averages doesn't actually impart much information about what's happening. Wikipedia lists unusual cold waves in Europe for 2004/5, 2005/6, 2007, 2009, 2010, and 2012. It's funny you ask me to stick to actual science and data, when I'm the one who pointed out that the actual science and data overwhelmingly support the case that neonics likely aren't the cause of CCD. You sound like a Greenpeace brainwashed whacko who refuses to examine the evidence. Enjoy your envirocult worshipping, I'll stick with the science that's enabled our society to feed 7 billion people worldwide and land rovers on Mars.