Winter is deadly for helpful insects but your yard can save them — here's how

Learn how to help insects survive winter with simple changes recommended by ecologists, from log piles to bug hotels.
YouTube on MSN

He Built The Secret Four Style of Underground Rooms and Swimming Pools

See how to masterfully use **primitive building** techniques to create an amazing **underground shelter**. This video shows * ...
insider.si.edu

American Indian habitats : how to make dwellings and shelters with natural materials / Nancy Simon and Evelyn Wolfson ; drawings and diagrs. by Nancy Poydar

Major Indian Tribes of North America -- California : How to build a minature plank house -- Great Basin - Plateau : How to build a Paiute Wikiup -- Southwest : How to build a Navajo Summer Shelter -- ...
Science Daily

This surprising building material is strong, cheap, and sustainable

A team at RMIT University has created a cement-free construction material using only cardboard, soil, and water. Strong enough for low-rise buildings, it reduces emissions, costs, and waste compared ...