Chris Martenson, PhD (Duke), MBA (Cornell) is an economic researcher and futurist specializing in energy and resource depletion, and co-founder of PeakProsperity.com  (along with Adam Taggart ). As one of the early econobloggers who forecasted the housing market collapse and stock market correction years in advance, Chris rose to prominence with the launch of his seminal video seminar: The Crash Course  which has also been published in book form  (Wiley, March 2011). It's a popular and extremely well-regarded distillation of the interconnected forces in the Economy, Energy and the Environment (the "Three Es" as Chris calls them) that are shaping the future, one that will be defined by increasing challenges to growth as we have known it. In addition to the analysis and commentary he writes for his site PeakProsperity.com, Chris' insights are in high demand by the media as well as academic, civic and private organizations around the world, including institutions such as the UN, the UK House of Commons and US State Legislatures.
Here are links to Chris' recent appearances in the media: http://www.peakprosperity.com/page/chris-martenson-media 
I think it’s important that you understand who I am, how I have arrived at my conclusions and opinions, and why I’ve dedicated my life to communicating them to you.
First of all, I am not an economist. I am trained as a scientist, having completed both a PhD and a post-doctoral program at Duke University, where I specialized in neurotoxicology. I tell you this because my extensive training as a scientist informs and guides how I think. I gather data, I develop hypotheses, and I continually seek to accept or reject my hypotheses based on the evidence at hand. I let the data tell me the story.
It is also important for you to know that I entered the profession of science with the intention of teaching at the college level. I love teaching, and I especially enjoy the challenge of explaining difficult or complicated subjects to people with limited or no background in those subjects. Over the years I’ve gotten pretty good at it.
Once I figured out that most of the (so-called) better colleges place "effective teacher" pretty much near the bottom of their list of characteristics that factor into tenure review, I switched gears, obtained an MBA from Cornell (in Finance), and spent the next ten years working my way through positions in both corporate finance and strategic consulting. From these experiences I gather my comfort with numbers and finance.
So much for the credentials.
The most important thing for you to know is the impact that the information that I’ve now placed on this site had on me. Let’s do this as a Before and After.
Before: I am a 40-year-old professional who has worked his way up to Vice President of a large, international Fortune 300 company and is living in a waterfront, 5 bathroom house in Mystic, CT, which is mostly paid off. My three young children are either in or about to enter public school, and my portfolio of investments is being managed by a broker at a large institution. I do not really know any of my neighbors, and many of my local connections are superficial at best.
After: I am a 50-year-old who has willingly terminated his former high-paying, high-status position because it seemed like an unnecessary diversion from the real tasks at hand. My children are now homeschooled, and the big house in Mystic was sold in July of 2003 in preference for a modest homestead in rural western Massachusetts. In 2002, I discovered that my broker was unable to navigate a bear market, and I’ve been managing our investments ever since. I grow a garden every year; preserve food, know how to brew beer & wine, and raise chickens. I’ve carefully examined each support system (food, energy, security, etc), and for each of them I've figured out either a means of being more self-sufficient or a way to do without. But, most importantly, I now know that the most important descriptor of wealth is not my dollar holdings, but the depth and richness of my community.
I hope you find what I have to offer here useful.
All the best,