During the holidays I was philosophizing about the previous article, the biomass growth reference. And look, it is actually very simple: per person there is about 2 ha on earth for each of us. That is everyone’s personal “resource bubble”.… Continue Reading
It is now exactly 10 years ago around Christmas that I struggled with the interpretation of ‘cycles’. Why I wondered, is everyone convinced there are two resource cycles, as promoted nowadays in whats called the circular economy? And why would… Continue Reading
A few months ago I wrote about agriculture, and that the EROI was 0.16: 1 (energy return on (energy) investment) – on average across all agricultural products in the Netherlands, and the EL (Embodied Land) no less than 7.7 ha-year… Continue Reading
Since it looks as if we are going to introduce the climate measures for buildings mainly via municipalities or cities, I have recovered some of my older research material about urban sustainability, developed when I worked at Wageningen University. The… Continue Reading
Before going into agriculture, and the available figures for it, I will briefly summarize how evaluate keeping resource loops closed. Fot this a calculation method has been developed, called MAXergy, with Embodied Land as a measuring unit. To close resource… Continue Reading
How are we going to ensure that buildings will be sustainable, that is to say, with the least impact on the environment, concerning raw materials depletion, loss of biodiversity and, above all, CO2 emissions as the most urgent effect of… Continue Reading
Do we really want a CO2-neutral society, or even a society with closed cycles? If yes, a lot will have to change and we will need to become extremely creative. And not directly with the input of a lot of… Continue Reading
( picture: borrowed from: Agent Bob) … Well, then, what is a circular road? was a question that was asked , after the previous article. To answer, lets first analyze what happens when constructing a highway with current approach. Then… Continue Reading
Henri George, during the end of the 19th century, was a renowned thinker and writer. His central theme was Land. He saw land as a vital good, to give everyone a basis to live from. But he also saw that… Continue Reading
There are many misunderstandings , when it comes to evaluating resource cycles. As well as in daily practice, as in science. A problem in this is the human perception to focus on things that seem relevant for mankind. For instance… Continue Reading