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

Where to buy 1 ha of sea …

2 oktober 2022admin
ocean-2

The other day I was thinking, I’m going to invest some money in land, since it has a stable value, or at least, has lasting ‘value’. But then I realized that this has mainly (for the time being) financial value,… Continue Reading →

agriculture, Embodied Land, land, Netherlands, ownership, policies

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

EROI and land use of potato crop – a pilot 1/2

25 april 2022admin
aardappeleters

In a recent project , ‘Verrijkende Landbouw’ ( Enriching Agriculture) [1], I was able to refine the theory and methodology of MAXergy, using Embodied Land as an indicator [2], thanks to a practical pilot. As follows. Agriculture needs to change.… Continue Reading →

agriculture, biomass, Embodied Land, EROI, food, labor, land, landuse, MAXergy

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

DELY : Disabled Earth Life Years

9 oktober 2021admin
worm

We can develop beautiful so-called scientific methods to calculate all the effects of our impact, but in the end only two data are relevant: energy and material use, and the rest is derived from that: all emissions, to air or… Continue Reading →

agriculture, assessment, biodiversity, biomass, ecology, future, health, landuse, people, resources, society

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

land (-potential) as the new money standard

22 november 2020admin
27

Someone suggested recently to think about a new money standard. Well, thats a challenge, so I did. Since money is a virtual unit of trade, not based on any actual value. Not anymore, at least, since we left the barter… Continue Reading →

agriculture, biomass, capital, economy, Embodied Land, future, land, landuse, money, policies, solar energy, value

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

Let nature do the work… EROI in agriculture

26 augustus 2019admin
voedselbos

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 →

agriculture, assessment, CO2, Embodied Land, EROI, resources, transition

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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In the mean time …

Ronald Rovers

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  • ron_rovers RT @j_vollenbroek : De meeste Nederlanders zijn vóór het doorzetten van een stevig stikstofbeleid. De uitgesproken tegenstanders van het sti…

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  • ron_rovers @Platform_M3 Zie ook voorproefje deel 2 als opinie in cobouw.. https://t.co/Vry12u4qJW

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  • ron_rovers the summary of the summary. No words needed https://t.co/Tgqzx2g9aB

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  • ron_rovers We moeten af van #LCA . Is te vaag en niet effectief. Laten we gaan voor #BENG 4 en 5: een maximum aan #embodied e… https://t.co/PWn5lycTiW

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  • ron_rovers RT @CobouwNL : Als duurzaamheidsvergelijkingen in geld gemaakt worden, weet je al bij voorbaat dat je belazerd wordt https://t.co/mSF7foc5QW…

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