Previously, we have had a discussion about how to invest in a way that protects you from inflation, at least to some extent. Another risk worth considering is that fossil fuel availability and affordability might decline sharply in coming decades. This could be the product of any combination of declining output and rising demand, resulting in greatly increased prices and reduced availability. Such an outcome is especially likely if we resist the pressure to chase down every unconventional oil and gas deposit as conventional fields continue to decline in their production.
Both in terms of life choices and investments, it seems like there are behaviours that can be adopted to reduce vulnerability to peak oil. Of course, there are associated costs. Putting solar panels on your roof to reduce dependence on the grid is expensive; so too is investing in assets that are less vulnerable, but which have a lower return associated. The challenge, then, is to assess whether peak oil is a genuine risk across the next half-century or so, as well as identify the most cost-effective responses to deploy if it is decided that the risk is a meaningful one.