Energy efficiency

Energy efficiency e.g. for sustainability

Growing world population

One of the major problems for our future is the ever growing number of people living on Earth. We are referring to this in several articles on this site. Below you can find first a graph about the population by geographical area and by year, starting in 1950 until the year 2050.

The second graph shows the population density by geographical area by year, i.e. the number of people living per square kilometre. Further down, we provide lists of the current and predicted population by country. Click on one of the links below to jump directly to a list or graph:

Global warming solutions – sensible energy consumption

Global warming solutions: Energy mix 2003In search for global warming solutions, people are suddenly asking for alternative energies. However, more than 80% of our energy is currently taken from the fossil sources oil, gas or coal. It is absolutely impossible to supply this much of energy from alternative sources within the next 10 to 20 years.

Therefore, we should first ask how much energy is really required to have  a good quality of life, instead of taking our current energy consumption for granted or even indispensable. In a second step, we can then look for potential energy sources to fulfil this need.


Nuclear power for you - nuclear waste for the others?

The need for electricity has constantly risen world-wide over the last years. This is not only true for the so-called developing countries but also and in particular for all well-developed countries. In order to fulfil the demand, obviously additional power plants have to be built.

Which technology is best for generating electricity? This question certainly has to be answered on a case by case base. But it is very concerning that nuclear power plants more and more seem to be chosen as "the" technology of the future.

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