This is the first of six videos taking a total of 45 minutes to outline the ideas in Chris Martenson's "Crash Course". I don't agree with everything he says (for instance, he reduces "the environment" to "resources", making no mention of climate change or biodiversity decline) and some of the analysis is simplified (what do you expect in 45 minutes?), but this isn't a bad summary of the three interlocking crises on the horizon: economy, energy and ecology (I prefer the term ecology over "the environment").
I would love an economist to evaluate his analysis of debt and how money is created (which he skims over in this short version, but spends twenty minutes on in the full version, available here). This is the area with which I am least familiar and I have heard others characterise our money system in a similar way, but I wonder whether this is how experts would put it.