We all know one thing that Greece, Cyprus, and Puerto Rico have in common–severe financial problems. There is something else that they have in common–a high proportion of their energy use is from oil. Figure 1 shows the ratio of oil use to energy use for selected European countries in 2006.
Figure 1. Oil as a percentage of total energy consumption in 2006, based on June 2015 Energy Information data. (Inverted order from chart originally shown.)
Greece and Cyprus are at the top of this chart. The other “PIIGS” countries (Ireland, Spain, Italy, and Portugal) are immediately below Greece. Puerto Rico is not European so is not on Figure 1, but it if were shown on this chart, it would appear between Cyprus and Greece–its oil as a percentage of its energy consumption was 98.4% in 2006. The year 2006 was chosen because it was before the big crash of 2008. The percentages are bit lower now, but the relationship is very similar now. Continue reading →
What would humans have to do to really live sustainability with the world’s ecosystems?
I got a shock when I read about the pattern of species extinctions which is taking place that form a part of what is called the “Sixth Mass Extinction.” It turns out that man’s adverse influence on ecosystems didn’t start a few hundred years ago, when we started using fossil fuels. Instead it started way back, when man was still a hunter-gatherer, and there were fewer than 100,000 people on earth.
Phase One began when the first modern humans began to disperse to different parts of the world about 100,000 years ago.
Phase Two began about 10,000 years ago when humans turned to agriculture.
In this post, I’ll explain a little more about the Sixth Mass Extinction, and how fossil fuel use has contributed to it in recent years.
I’ll also talk about a new bottleneck that humans seem to be reaching related to oil limits and financial crises that grow out of these oil limits, with the current example being the European Debt Crisis. Depending how this and other debt crises work out, it seems possible that human population will decline. If this should happen, it could lead to a reduced problem with species extinction.
But the whole situation illustrates just how difficult attaining sustainability with world ecosystems is likely to be. Humans by their nature seem not to mesh well with world ecosystems. Unless humans become completely extinct, it seems likely that humans will always have difficulty living in a truly sustainable way.