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Ronald Rovers
articles with visions, concepts and explorations about sustainability
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biobased

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

23 mei 2022admin
natuurhuis-strotec

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… Continue Reading →

biobased, building, circular, climateneutral, CO2, embodied energy, future, housing stock, indicator, tools

From EROI to EROLI: energy return on Land investment ? 2/2

8 mei 2022admin
landschap

In the agricultural project that I described in my previous contribution [1], which was initially about the EROI, the energy return on energy investment, I subsequently calculated the effects back to land’input’. But then the thought soon arised: would is… Continue Reading →

agriculture, assessment, biobased, biomass, Embodied Land, EROI, EROLI, food, labor, land, landuse, system boundaries

The Bionological House

7 maart 2022admin
treehouses

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 →

agriculture, architecture, biobased, bionology, building, Embodied Land, future, housing stock, land, landuse, materials, prefab, technology

Carbon storage: the land-time relation 2/2

20 februari 2022admin
1-tree-island-lone-palm-tree-on-small-island-john-lund

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 →

agriculture, assessment, biobased, climate, CO2, Embodied Land, forests, future, housing stock, land, landuse, materials, resources

Carbon storage in wood-timber 1/2

14 februari 2022admin
co2-protest_1372397i

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 →

assessment, biobased, biomass, building, CO2, forests, future, land, materials, system boundaries

Half the agricultural land for biobased materials…

16 mei 2021admin
koolzaad4

Last week I published a letter in the Netherlands, in which I indicated that about 800,000 hectares of land would be needed for the construction of new homes. That’s how it works in a transition: We have to significantly reduce… Continue Reading →

biobased, building, embodied energy, Embodied Land, future, landuse, resources

Land, between heaven and earth

8 februari 2021admin
land-air

It is intriguing how the world fundamentally works, with its cycles, driven mainly by solar energy. Which can be traced back mainly to the yields of land, as I found out earlier. [1,2] (Land that has virtually disappeared from economic… Continue Reading →

agriculture, biobased, biomass, capital, commons, Embodied Land, food, forests, land, landuse, society

Living from 2 hectares, and not even that…

28 augustus 2020admin
2-hectare

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 →

agriculture, biobased, Embodied Land, island, land, landuse, resources

Biomass (-growth) is our reference : Back to the forests

19 juli 2020admin
food-forest

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 →

biobased, bioenergy, biomass, climate, CO2, ecology, food, forests, future, resources, sustainable, transition

biomass for energy? (not) again… 2/2

11 mei 2020admin
img_20181213_122706691

Biobased resourcing is hot. Which is understandable, of course, they grow by themselves, (its solar energy), they capture CO2, require little energy to process, and know multiple uses. You can built with then, heat, or create high-value resources, like in… Continue Reading →

assessment, biobased, bioenergy, biomass, building, CO2, energy, materials, policies, resources, transition

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Happy New Year 2023 !

Form Follows Fysics - reinventing the built environment (2021)
People vs Resources - restoring a world out of balance (2019)
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ABOUT

Independant researcher, speaker, writer , thinker,
main focus: closing resource cycles

interview in national newspaper 2022 (English translated): 6 limitations in sustainability

more on the office pages: www.ribuilt.eu

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most recent blogs

  • Building evaluation should change 1/2
  • Ourworldindata: on resource quantity and the energy transition
  • Europe: looking for a climate proof housing location
  • EU: No Net land Take ?
  • Governments – where lies your responsibility ?
  • Where to build, and where not to build (in NL)
  • The world of Babel (2)
  • The World of Babel
  • Trees versus humans
  • Not a CO2 focus, but a Post-Fossil focus
  • Is Art innocent…? and what about Musk or Putin?
  • Which books to read, and which to avoid…. (Non fiction…!)
  • Where to buy 1 ha of sea …
  • Forget tech-optimism…
  • Shame

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Ronald Rovers

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