When COVID-19 hit, cartographer Carlos Doviaza wanted to help his "brothers" — members of the indigenous community. He decided to help by doing what he does best: making maps.

From a generous urban farmer to a roving mariachi band, people are using their talents to help others. Read their stories — then nominate a problem-solver in your community.

Suicide is the second leading cause of death among 15 to 29-year-olds in the United States. A 2018 study from the Centers For Disease Control and...