I came across this website recently;
http://www.indexmundi.com/commodities/? ... months=180
It gives price indices for a variety of commodities over different time-periods. Nothing new here, but it brings into sharp focus the behaviour of prices over the last couple of decades, and why the "growth dream" is running into so many headwinds.
Choosing a 15 year time horizon is interesting. Many commodities show the same pattern; bumbling along quite nicely until mid-2000's, then the massive spike around 2008, followed by a settling down into a "new normal" much higher than before. This is the case whether one is looking at energy, food, metals or others.
Edit to add; notice how the food index (linked to above) has recently exceeded the 2008 peaks.
Why We've Hit The Growth Ceiling
Moderator: Peak Moderation
Why We've Hit The Growth Ceiling
Engage in geo-engineering. Plant a tree today.
What we need is: http://postgrowth.org/
And a Zero waste infrastructure: http://www.zeri.org/ZERI/Home.html
And a Zero waste infrastructure: http://www.zeri.org/ZERI/Home.html