Modular design fits well into the concept of the circular economy and I would like to bring your attention to the different possibilities.
When improving an existing design, making it more environment friendly by choosing different materials, this tool might come in handy. The ABC-X list, developed by EPEA.
In November I gave a Masterclass in Scotland for the Zero Waste Scotland program. Therefore I made a scheme that shows different routes of materials. I would like to share this with you. I defined three steps in the material loop: resource, biodegradability and recyclability.
A designer's dilemma:
Use the toxic substance that requires less energy or the nontoxic one that requires much more energy? [...] it is much easier to employ renewable energy in creating a product than it is to detoxify what has been toxified. 
A few months ago I found something fascinating in the field of materials. Programmable materials. Materials that can assemble themselves in the right conditions. How can you apply these materials in an eco-effective design?
Sustainable products must be sold. Otherwise they become waste and you know "Waste is design gone wrong". But what if you make fantastic woven fabrics for a living but you are not known? Then you need a framework that helps you make good quality products that sell to the right target audience. Karigar is such a framework.
When you want to make a good product you have to set a goal and start somewhere. You cannot do everything good at ones but need to continuously improve step-by-step by doing research and making informed choices. Last year when I gave an eco-effective training a participant gave the group and me an interesting insight. Simple yet effective! Today I would like to share this with you.
In 2009 I followed the Cradle-to-Cradle(C2C) training of EPEA which made me accredited as C2C design consultant. Now there is an online course which gives information about C2C in an accessible way. If you like to know more about C2C this is a good course to follow.