Development of a new sustainable building material made from natural Ecuadorian zeolite and chitosan derived from shrimp waste. This eco-friendly geopolymer not only reduces the environmental impact compared to traditional cement but also exhibits antibacterial properties against microorganisms such as Klebsiella aerogenes and Staphylococcus aureus. The results demonstrate that small amounts of biopolymer can improve mechanical strength and provide sanitary functionality, opening new opportunities for safer, more sustainable building materials aligned with the circular economy.

A survey of 1,116 new species descriptions published between 1990 and 2025 reveals improved quality, though authors from the Global North use more lines of evidence in their studies.

Analysis based on municipal data identifies seven production clusters and ten consumption clusters, highlighting the need for infrastructure to connect energy and industrial hubs.