As an Earth Scientist I am ready and willing to answer any reasonable questions on this topic.
, yes, carbon dioxide in the atmosphere has been a cause of global warming and cooling trends for millions of years. If the industrial revolution never existed, would Earth's global temperature be rising right now? The answer is yes... but at a much lower rate. To act as if burning fossil fuels at the rate we have for the past 250 years isn't having some control over the accelerated rate of global temperature is just naive.
Let's have a look at CO2 levels over the last 10,000 years:
That graph was taken from the International Panel on Climate Change 4 (2007). They have received some criticism recently but by and large their work is accepted globally as the standard right now.
And let me clear the air about something else: global warming does not mean increased temperatures everywhere... due to continental land masses, ocean currents, and atmospheric circulation, temperature and precipitation patterns are different based on geography (most importantly latitude, elevation, and proximity to an ocean, to name a few). Currently, all major deserts are expanding their footprint and ~95% of glaciers are diminishing (a few anomalous ones in Patagonia and Greenland are increasing). Don't believe me? Go visit Glacier National Park in 25 years. There won't be any "glaciers" left to walk on. But I'm getting off track...
High snowfall in one season does not contribute to the snowpack unless it remains through the warmer summer months without melting. Where do these situations exist? IN GLACIERS. Valley glaciers make up all of the glaciers in the continental US. Valley glaciers are the ones that are disappearing right now.
So let's recap:
1) CO2 levels are increasing many times faster than they typically do due to human fossil fuel consumption
2) Glaciers are disappearing
3) Snowfall only contributes to snowpack where glaciers exist
Conclusion: No glaciers = no snowpack. Even anomalously high snowfall will not reverse the trend of global warming. Using a few years of above average snowfall data to dismiss a trend that has been accelerating for centuries is just plain stupid.
Also: I agree with everyone mentioning the urbanization of deserts (US Southwest) is a ridiculous and unsustainable practice.