It is true that there have been "Ice Ages" before (whether you are talking about the last glaciation that ended around 10,000 years ago, or the "mini Ice Age"s that allowed for Frost Fairs on the Thames etc.) and these will always continue, as they are part of a natural cycle (that, for simplicity, I will not go into here).
However, although levels of Carbon dioxide and particulates have been higher at some point in Earth's history - they have not been such in human history.
So, irrespective of whether we are in a natural cycle of Earth cooling / warming, then Man's activities are certainly masking this.
The particulates we put into the atmosphere are perhaps slowing the true extent to which the Earth is warming by reducing insolation (look it up).
And as for the "Well, at least my summers will be warmer" brigade - then think again;
The vast majority of Earth's heat budget is circulated by ocean currents - so if the North Polar ice starts to melt, then the melting cold water will sink nicely into the Greenland and Barents Seas knocking out the North Atlantic Drift (N.A.D.)
This is the tail end of the Gulf Stream - the ocean current that brings nice warm water from the South up to our latitudes and means that despite (as Teddio says) being the same latitude as Labrador, and also Moscow - we presently don't have the same sub-zero Winter temperatures as those places.
Replace the N.A.D. with a nice, cold Arctic current though, and we can expect to feeze our proverbials off for most of the year.
Still, if that's what you want, New Judge, you wear your bathers, I'll wear me thermals and we'll meet for apres ski on the South Downs. ok?