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

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

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

The Netherlands is worn out

16 november 2019admin
nederland-uit-de-lucht-aereal-2

Nitrogen levels are too high, as are levels of particulate matter, too much manure, CO2 emissions continue to rise, as does methane emissions, biodiversity drops dramatically, the agricultural land is exhausted, natural gas fields collapsing, heat waves of 40 degrees,… Continue Reading →

ecology, economy, future, politics, society, system boundaries

Every agriculture hectare requires 7,7 ha input…. Embodied Land

26 januari 2019admin
pexels-free-harvest-grain-combine-arable-farming-163752

Before going into agriculture, and the available figures for it, I will briefly summarize how evaluate keeping resource loops closed. Fot this a calculation method has been developed, called MAXergy, with Embodied Land as a measuring unit. To close resource… Continue Reading →

assessment, circular, ecology, Embodied Land, exergy, MAXergy, resources, sustainable

Short of Land? the ocean, our next colonisation

2 februari 2018admin
gerdmeissner-pixabay-norway-salmon-free

On land probably we will not succeed. It gets a bit crowded with 10 billion, the available land per capita is decreasing, we resist giving up some of our wealth , our thirst for materials and technology. The battle of… Continue Reading →

blog, ecology, future, resources

The hole in the doughnut, and more economics

12 januari 2018admin
donut-speech

And of we go, to Kate Raworth speaking in Rotterdam, about her book and ideas on ‘dougnut economics’. The evening started well: at the entrance I overheard a conversation between two students: One saying: “what a lousy students we are,… Continue Reading →

circular, ecology, economy, future, society, system boundaries

The Growth syndrom : a pyramid game

7 maart 2017admin
geld drukken 3

Richard Attenborough summarized it as follows: ” Anyone who thinks that you can have infinite growth in a finite environment is either a madman or an economist..” The addiction to profit and money making by economists has simularities with religion… Continue Reading →

blog, climate, CO2, commons, ecology, economy, future, resources

People are complex, nature is not…

16 oktober 2016admin
oosterwolde2

Again and again I come across the comparison of man and nature . And usually the story is that we as mankind approach things to simplistic or to reductionist, , we break down things in little pieces which we optimize,… Continue Reading →

building, ecology, sustainable

Circular? Or economy ? (the last one…)

25 januari 2016admin

For a while I am trying to understand what the initiatives for a Circular Economy imply. And when I look at the two words , they are in contradiction, from whatever angle I observe this. First of all what is… Continue Reading →

blog, circular, ecology, materials

Eco (-modernism) bla-bla

27 november 2015admin

september 2015 Just recently I was triggered by an interview in a Dutch newspaper about a new movement: eco-modernism. The article was a lot of nonsense, running forward away from problems to try to maintain the luxury life we have.… Continue Reading →

ecology, sustainable sustainability

Happy New Year 2022 !

Form Follows Fysics - reinventing the built environment (2021)
People vs Resources - restoring a world out of balance (2019)
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main focus: closing resource cycles
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most recent blogs

  • A ‘ New Bauhaus’ ? Or Solar Decathlon ?
  • MNB1: 0-CO2 per 2030, MNB2: max 550 kg/m2
  • From EROI to EROLI: energy return on Land investment ? 2/2
  • EROI and land use of potato crop – a pilot 1/2
  • Continue partying, or (CO2) lockdown ?
  • Critical look at graphics illustrations.
  • The Bionological House
  • Carbon storage: the land-time relation 2/2
  • Carbon storage in wood-timber 1/2
  • a CO2 budget for a municipality
  • Environment and climate checklist for journalists
  • Change, back then and now
  • the creating-debtors-theory of money…
  • The future country of the Netherlands
  • Golf – the decadence in our use of space

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Ronald Rovers

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