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Ronald Rovers
articles with visions, concepts and explorations about sustainability
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system boundaries

Electric cars : the broader story

27 september 2020admin
old-timer-elektrisch-2

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 →

assessment, CO2, materials, mobility, policies, system boundaries, transport

A acute CO2 lockdown: When could that happen….2/2

5 juli 2020admin
water-shed-europaische_wasserscheiden-river-catchments-europe

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 →

climate, CO2, future, policies, system boundaries, 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

Embodied Energy emissions is now, not in 2050 !

8 september 2019admin
ee-graph1

This is an extended version of a previous post on linked in, which had a lot of reactions.. {april 2019}   When it comes to Embodied Energy, we are used to normalize this over the lifespan of a building (… Continue Reading →

0-energy, assessment, CO2, embodied energy, system boundaries, tools

Circular cities..? Real time material flows for London

11 februari 2019admin
dscn6285

Since it looks as if we are going to introduce the climate measures for buildings mainly via municipalities or cities, I have recovered some of my older research material about urban sustainability, developed when I worked at Wageningen University. The… Continue Reading →

architecture, building, circular, Embodied Land, materials, politics, resources, smartcities, system boundaries, tools, urban

From Tetra Materia, to Trias eXergetica 2/2

22 september 2018admin
trias-exergetica3

The Tetra Materia (see previous article) approach might be useful for practice, its not the whole story. It guides direction, but does not set targets. And our system has an overall limit as well. Materials, even renewables, come exclusively from… Continue Reading →

circular, energy, exergy, materials, resources, system boundaries, tools

A Circular road…. ?

1 april 2018admin
highway-looping

( picture: borrowed  from: Agent Bob) … Well, then, what is a circular road? was a question that was asked , after the previous article. To answer, lets first analyze what happens when constructing a highway with current approach. Then… Continue Reading →

assessment, circular, Embodied Land, materials, resources, system boundaries

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

including resource cycles impacts : a matter of time…

15 december 2017admin
housing-by-construction

You cant evaluate material flows, by evaluating products, like a car of a building. As argue din the previous article. But in general this is what sustainable approaches suggest, and in special the ‘circular’ trend: if you recycle the product… Continue Reading →

building, circular, materials, resources, system boundaries

A product cycle is not a resource cycle: a double agenda

4 december 2017admin
resource-stocks1

There are many misunderstandings , when it comes to evaluating resource cycles. As well as in daily practice, as in science. A problem in this is the human perception to focus on things that seem relevant for mankind. For instance… Continue Reading →

assessment, circular, embodied energy, Embodied Land, materials, resources, system boundaries

NEW BOOK:

Form Follows Fysics - reinventing the built environment
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ABOUT

.....its materials, stupid..! ...................
Independant researcher, & Fellow Technical University Eindhoven, fac. Built Environment
.
Speaker, writer , thinker, researcher : main focus: Zero impact built environments
office: www.ribuilt.eu

Thinking:

a good solution can be multiplied by 7-9 billion, and still hold.

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most recent blogs

  • Corona, the built environment, & The Species vs the Individual
  • On books: Tip 1: don’t buy Bill Gates’ book.
  • Forgot 1 SDG (11) : Calamity proof cities
  • The UN SDG’s adapted for rich countries…
  • Experiences with a new ‘prefab’ kitchen…
  • Land, between heaven and earth
  • Climate neutral Rugby…
  • Corona & Climate update: the R-value of Climate
  • Wish you a Better New Year!
  • 2020-2040: What goes up, must come down…
  • Embodied energy data from building installations
  • land (-potential) as the new money standard
  • Solar panels are not the solution…
  • Solar panels: ≤ 1m2 PV per m2 floor …
  • How to distribute the remaining Carbon budget ?

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