Surprising ideas: Video on facebook
Source: MCC (mcc-berlin.net)
(Teaser) For Switzerland to become climate neutral, there’s no way around electric mobility. But to get e-​cars going, the public must push for charging stations where people live, argues Anthony Patt.
One of the many changes needed for Switzerland to eliminate greenhouse gas emissions is to make its road mobility electric, with sales on new internal combustion engine (ICE) vehicles to cease by 2030 or soon after. More...
Question: How are OP masks produced?
Sachgeschichte: OP-Maske Herstellung (kinder.wdr.de)
What are the ingredients? Are they toxic for humans?
Maskenpflicht: Gift im Gesicht (heise.de)
"(...) Auch wenn das Vlies der meisten FFP2-Masken wie Papier erscheint, es handelt sich um einen thermoplastischen Kunststoff: Polypropylen. Dazu kommen Klebstoffe, Bindemittel, Antioxidantien, UV-Stabilisatoren in großen Mengen. Außerdem haben die Forscher vom Hamburger Umweltinstitut und der Leuphana-Universität in Lüneburg, wo Michael Braungart Professor für Eco-Design ist, flüchtige organische Kohlenwasserstoffe in den zertifizierten Masken gefunden. (...)"
What about their life cycle - end of pipe or circular?
? - End of pipe.
Circular economy, cradle 2 cradle - building materials for smart cities!
Buildings for urban mining (video in German, zdf.de)
Sustainable construction - C2C projects: Houses as material storage
C2C - this abbreviation stands for Cradle to Cradle. Translated, it means: from the cradle to the cradle. In the construction industry, C2C projects stand for resource and climate protection. The vision of this sustainable building style is to create a waste-free economy. This is because all the products used are designed in such a way that they are either biodegradable or recyclable by type after use.
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Climathon 2020 (youtube.com)

From 17 liters per week to 500 grams per month: This is how it lives as waste-free as possible!

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The Swiss e-mobility company Kyburz from Zurich and the environmental engineer Olivier Groux presented an innovative battery recycling system (see video)
From the press realease: "Thanks to some new findings, it has been possible to More...
This Life Cycle Assessment for Li-Ion Batteries (LCA) was made 10 years ago - is it still up-to-date? Is there progress?

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Buildings cause 30% of our CO2 emissions. In Switzerland, around 17 million tonnes of building rubble (Bauschutt) are produced annually. Can this demolition material be returned to the cycle?
To the article in German about "Urban mining and circular building" (stadt.winterthur.ch)
DE - Bauten verursachen 30% unserer CO2- Emissionen. In der Schweiz fallen jährlich rund 17 Millionen Tonnen Bauschutt an. Kann dieses Rückbaumaterial wieder zurück in den Kreislauf geführt werden?
How do you drive an electric car that looks the same from the front and back and costs only 7,000 euros?
Source: Das Palindrom auf vier Rädern (golem.de)