1. Inhalt
  2. Navigation
  3. Weitere Inhalte
  4. Metanavigation
  5. Suche
  6. Choose from 30 Languages

Eco-at-Africa

Fixing our concrete problems

After water, concrete is the substance most widely consumed by humans. This ubiquitous substance is highly polluting but a German firm has developed a way of recycling old concrete.

Watch video 03:17