Final answer:
When homelessness is defined more inclusively, the estimate for homeless individuals nationally is around one-half million. Homelessness is a significant issue both globally and in the United States, with various factors contributing to its prevalence.
Step-by-step explanation:
When homelessness is defined in a more inclusive manner, homeless estimates jump to about one-half million individuals nationally. The issue of homelessness is a major concern globally, affecting both poor and developed countries. In the United States, the homelessness rate has also been increasing in recent years. Factors such as economic conditions, mental illness, substance abuse, and inadequate housing contribute to the prevalence of homelessness.