With vegetables, we’ve been doing it for years: most current vegetables never existed, in an autonomous evolutionary process. We as humans have slowly transformed them so that they grow the way we appreciate them, and want them on our plates.… Continue Reading
There are many ways you can start “accounting” for CO2 (as comments on the previous article also showed), but at the end of the day what matters are absolute CO2 emissions, from whatever activity. And cutting down a tree and… Continue Reading
Storage (binding) of CO2 in wood/timber is a hot issue at the moment*. But how should that be calculated really? Before I go into more detail, a few preliminary remarks: (the part on ‘calculating’ has been later added, and ‘CO2’… Continue Reading
Life has an end, but is there also an ‘end of life’, for products and buildings? Which is frequently used in science, like in building evaluations calculating with a maximum life span, but seems weird. It is understandable in trade,… Continue Reading
At the end of the summer season, some thoughts that came up while practicing ‘doing nothing’ on camping. And I had to think of an always nice comparison with cars: the weight of the car versus the weight of the… Continue Reading
Everything is renewable – classification after growth rate – renewal time, flow rate . As a result of some recent projects new insights developed over resources, that any resource is renewed. Its only a matter of time. But that implies… Continue Reading
I am often amazed at the amount of lights in the built environment, which only seems to be growing. Everyone thinks they have to illuminate everything. Driveways, stairs, gardens, anything you can think of has a light on it. That… Continue Reading
Our kitchen was far gone. Much damage, doors were crooked, still cooking on gas, a tile floor with pits, etc. so something had to be done. You can still cook there, its not that we are condemned to raw food,… Continue Reading
There is growing need for information of embodied energy impacts. As I argued in a Linkedin article last week: Needed: A international Embodied Energy Data Authority’.* But here I want to address the lack of data for especially installations. Mainly… Continue Reading
As we want to get rid of fossil fuels, we will at least have to develop everything now without fossil fuels. And in any case the operational energy. In the case of new buildings this leads to “0-energy buildings”, which… Continue Reading