A strong, credible body of scientific evidence shows that climate change is occurring, is caused largely by human activities, and poses significant risks for a broad range of human and natural systems….
Some scientific conclusions or theories have been so thoroughly examined and tested, and supported by so many independent observations and results, that their likelihood of subsequently being found to be wrong is vanishingly small. Such conclusions and theories are then regarded as settled facts. This is the case for the conclusions that the Earth system is warming and that much of this warming is very likely due to human activities. (US National Academy of Science)
“there is now a very clear pattern in the scientific evidence documenting that the earth is warming, that warming is due largely to human activity, that warming is causing important changes in climate, and that rapid and potentially catastrophic changes in the near future are very possible. This pattern emerges not, as is so often suggested, simply from computer simulations, but from the weight and balance of the empirical evidence as well.” Dr L Thompson
The great cryo-scientist Dr L Thompson has a must-read paper, “Climate Change: The Evidence and Our Options.” You can read a summary here: Climatologists are speaking out: “Virtually all of us are now convinced that global warming poses a clear and present danger to civilization”
Very slowly the message is getting through that the so called Climate gate email scandal was a fiction promulgated by politically or commercially motivated individuals and a few rogue scientists. Their claim, based on a few emails cherry picked out of context from thousands of stolen emails, that man made global warming is a corrupt conspiracy involving thousands of climate scientists was always ridiculous.
As interested people have become aware of the context, evidence and facts rather than the tabloid conspiracy theories, the climate change deniers have been exposed as a group whose arguments have little grounding in reality.
Unfortunately the reality is that the evidence for climate change is convincing and comes from multiple independent branches of science and with each month the evidence piles deeper.
Also, unfortunately, the media have tired of the story or having had their fingers burnt are now avoiding it. Apart, of course, from those papers and Fox News who still maintain the deceit that there is no evidence for man made global warming. In the meantime the ordinary person will, understandably, be totally confused and many believe that there is still a debate between scientists. This could not be further from the truth. There is of course a great deal of debate about the detail, the processes, the science, the unknowns, the range of predicted consequences etc, but there is no debate among those seriously involved in climate science that “we have a problem”.
Oh and of course just because it’s cold or snowing doesn’t mean that the Earth isn’t warming see: NASA explains how Europe can be so cold amidst the hottest November and hottest year on record