Human sustainability requires freedom of movement.  Freedom to choose where to live your life and put down roots.  That freedom is restricted by immigration laws and requirements.  Businesses are desperate to find the most talented human resources and most lucrative markets, and individuals are desperate to find the most rewarding employment and environments for themselves and their families.  Both of these needs must be met for human sustainability.  Satisfying these needs often crosses borders, implicating the local immigration systems and authorities.

To better human sustainability, immigration systems must be scrutinized to see what avenues can be enabled to ease freedom of movement.  Foreign entrepreneurs and international businesses must have routes to establish and operate businesses in new global markets, generating revenue and offering employment opportunities locally and globally.  Individuals need feasible ways to obtain visas in a timely manner to accept global employment assignments and to establish themselves in new settings.  More transparency is needed in the visa adjudication process so that all involved understand more clearly the criteria and reasoning used in adjudications.  This will allow applicants to better prepare their visa petitions, which will increase efficiency and effectiveness all around, and will increase the feeling that there is fairness and trust in the immigration system.  Improving immigration systems will improve human sustainability and happiness.