Just some sample ideas to get you started. If you create an article about one of these, please remove it from this page.
Built environment
Urban planning topics:
- New Urbanism and transit-oriented design have many subtopics which deserve articles
Green building topics:
- Thermal mass
International development topics
Communications:
- http://policy-practice.oxfam.org.uk/blog/2012/03/pink-telephones-in-cambodia - at least a mention on Mobile_phones_in_development_and_disaster_management, maybe its own article too