Categorie: CO2

Large City fires in 2100 ( ‘D-Day’….)

The year 2100: Finally! It’s the year 2100, and for the first time, CO2 emissions from buildings will start going down. It should have been already zero by 2050, but due to spreading emissions over the lifespan of buildings, it’s only mathematically the case from 2100 onwards. Yearly that will…

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CO2 should not be traded

This week I was confronted again with CO2 calculations. It was about the (absolute) CO2 budget, the maximum that can still be emitted to keep a chance of staying under 1.5 degrees, and which will be exhausted at the end of next year.[1] The starting point, of course, should be…

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LCA is not for practice. We need absolute energy indicators. 2/2

In many countries there is discussion at the moment about measuring the environmental impact of building ( and living ). [1] On the one hand of course the (operational) energy consumption, and how to deal with limited CO2 emission budgets. But on the other hand even more on the environmental…

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Building evaluation should change 1/2

There is a lot of discussion in the Netherlands about how to assess buildings, if you integrate material impacts in addition to energy, as well as to somehow include CO2 budgets. There is already an instrument for this, the MPG, (materials performance Buildings) but it is under discussion. Besides, in…

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Not a CO2 focus, but a Post-Fossil focus

The Quest in Egypt is actually quite simple: Not look for reductions of fossil, but how to live off the sun, and its derivatives, wind and water power. And where possible make things a little more effective with a little gravity and geothermal power. That’s it, in terms of energy…

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NRC newspaper interview: 6 limitations with sustainability

Just a few weeks ago I was interviewed by Paul Luttikhuis for the national Newspaper NRC. He creatively ‘summarized’ my book ( People vs Resources) into 6 limitations and discussed the issues with me. The first one is probably the most important one, and well re-phrased by Luttikhuis as: “the…

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A CO2 budget (limit) for housing

Calculating in CO2 remains a challenge, especially when it comes to the remaining budget. There is in the Netherlands a small action group that is trying to define how we should deal with the remaining CO2 budget for the built environment. How much CO2 may be emitted (invested) per new…

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MNB1: 0-CO2 per 2030, MNB2: max 550 kg/m2

Last week, two interesting reports were published analysing how regulations can better support ‘sustainable’ material use. Very esteemed colleagues, united in a Dutch ‘Gideons tribe’ to make the buildings sector move faster, have been working on this. [1] I can agree in general with the contents and analyses ( to…

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Continue partying, or (CO2) lockdown ?

There are actually only two options (‘scenario’s’): Either we go into CO2 lockdown, or we party on until the whole thing collapses…. The latest IPCC report makes that perfectly clear again. What we are doing now is a case of “soft nurses make bad wounds”, with our decades-long unbridled optimism…

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Critical look at graphics illustrations.

Graphs are powerful images, and unlike written assertions (“opinions”), there is often little discussion about graphs. But they also claim things, and, I notice it myself, I am more inclined to accept something from graphs than from words. Probably because it is easier to recognize your own opinion in them;…

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