There are many similarities between the Corona crises and the climate crises. But there is 1 difference: there is no vaccine against climate change, after which we can pick up where we left off. That is more or less the… Continue Reading
Last year I wrote about a publication from 20 years ago, in which prominent figures looked 20 years ahead. [1] The result was not that good, the future is always more different as expected. However, a number of reactions wondered… Continue Reading
Before we hurry covering everything with solar panels, let’s reason a bit further, because since my first experiences with renewable energy, many new insights have emerged. Those first experiences I had when building a “Bicycle wheel windmill”, as described in… 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
A few years ago, together with colleagues Guillaume Habert from Switzerland and Thomas Lützkendorf from Germany, I started exploring the CO2 budget that was still available, and the consequences for construction. This budget of maximum remaining CO2 emissions to stay… Continue Reading
Researchers and other involved parties are regularly at odds with each other: does buying an electric car compared with a fuel driven car reduce CO2 emissions or not. A few weeks ago, another such investigation was in the news. [1]… Continue Reading
By now its obvious: the way we are currently dealing with climate, environment, raw materials, food, biodiversity, will not help us prevent disasters. But what then? The struggle and discussion on solutions is in full swing currently. Just look at… Continue Reading
When can we expect a real CO2 lockdown, some wondered, after reading my previous comtributions. Good question. Months ago, someone also asked how I saw the future in 20 years, following an article about predictions from 20 years ago[1]. That… Continue Reading
1 Tonne per person per year. CO2 emissions. That’s where we have to go. Comparable to the R-value of Corona. If we above that, we contaminate the atmosphere too much and it becomes out of control. And it is now… Continue Reading
Next week, the world sustainable built environment conference was planned, from 9-11 June, in Gothenburg, Sweden. It has been put on hold since early March, due to Covid-19 virus of course. It probably will be postponed or become a virtual… Continue Reading