This is getting more comical all the time. A few years ago experts were blaming the increase in the number of dangerous spiders in Britain to global warming and the milder winters being experienced there. It was unequivocal evidence of global warming. http://www.dailymail.co.uk/news/article-452264/Warning-rise-UKs-dangerous-spider-warmer-winters.html
Now that the past three years have seen record breaking cold winters in Britain and the rest of Europe, global warming is once again being blamed:
“And as the globe continues to warm, we in DC and our counterparts in London might just need to get used to frigid winters.”
-Eric Haxthausen, director of U.S. Climate Policy for The Nature Conservancy
So, to sum it up: if it gets warmer, it is a sign of global warming. If it gets colder, it is also a sign of global warming. This kind of logic is unfalsifiable and is the sign of a pseudoscience.
Meanwhile check out this video. Snow used to a rare event in the British Isles.