Important announcement

Dear visitor,

Please note that this OpenCourseWare platform will be replaced at the end of 2026 by a new platform (under the same url ocw.tudelft.nl).

Courses and their contents that are currently available the platform will partly be migrated. URL’s for this content will change and content might be unavailable for some time. In addition, some courses will not be available anymore.

If you are linking to specific courses on this platform (for instance for your students), please take timely measures to avoid problems with access. Possible actions are:

  • Download the materials to your local platform (laptop, server)
  • For educators only (including TU Delft lecturers): Contact us at ocw@tudelft.nl and inform us what course you are using in what context (institute, program, period of use, number of students). We will research (in collaboration with the authors of the course) and decide if we will migrate the course, and if yes, can supply you with a new url.

Thank you.

Lecture 4: Cradle to Cradle

What is cradle to cradle? An architect and a chemist came up with a new view on the use of materials and resources in products and industrial processes. William McDonough en Michael Braungart wrote a book: ‘Cradle-to-Cradle, Remaking the Way We Make Things’. This is an introducing lecture on the cradle to cradle concept by Bram van der Grinten.

Keywords: cradle to cradle, c2c, resources, waste, society, nature, Michael Braungart, William McDonough, life cycle assessement, retrieving, energy.

Cradle to Cradle: A Critical View

In 2009 Bram van der Grinten again joined the students on the boat to give his critical view on cradle to cradle. Cradle to cradle is an inspriring concept to many people, but is it usable and realistic? Which constraints are relevant here?

Keywords: cradle to cradle, C2C, resources, waste, C2C certification, society, nature, Michael Braungart, William McDonough, life cycle assessment, retrieving, energy, trademark.

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