"Ohana means family. Family means no one gets left behind."

Wise words from a cartoon movie about a little girl and a deviant alien who create their own family. That's right: create. As long as humans have existed in civilizations, families have been made from connections, fostered not only by blood but also by choice.

Adoption is an important way to forge family ties. However, adoption continues to carry an air of secrecy around it, which simply can't sustain as these types of families become more common.

Why do people adopt?

The most common motivation for adoption stems from issues with fertility, but recently, some couples opposed to having biological children for a number of reasons—including climate change worries—are choosing to adopt as well. Their reasoning is that it's more sustainable to provide a warm and loving home to a child who's already been born.

Simply put, "People will adopt because they don't want to bring another child into the world," said