(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.)

(THE CONVERSATION) Hurricane Harvey’s historic floods have killed at least 30 people. An estimated 32,000 more have been evacuated into shelters, and approximately 210,000 have registered with the Federal Emergency Management Agency for assistance.

Disasters, whether natural (like hurricanes and floods) or man-made (like wars), can cause tremendous upheaval in people’s lives.

Imagine what being evacuated from your home – even temporarily – would feel like. What about having your ho...