WEST VIRGINIA: Children affected by the opioid crisis play in the backyard of their home in Charleston, WV.

WEST VIRGINIA: Nikki Snuffer, 35, hugs her daughter Harlow, 6 in Charleston. Snuffer and her wife Louisa adopted Harlow and seven other children impacted by the opioid epidemic.

WEST VIRGINIA: Harlow, who was born dependent on opioids and later adopted from foster care, poses in the backyard of her home in Charleston.

SOUTH CAROLINA: KinTerra Johnson and her three children were evacuated from their home in January after two of their neighbors were found dead of carbon monoxide poisoning.

SOUTH CAROLINA: Children forced out of their home due to the threat of carbon monoxide poisoning pose in the parking lot of their public housing complex.

SOUTH CAROLINA: A child plays in the parking lot of a public housing complex.

CONNECTICUT: Children play in the stairwell of their public housing complex in Hartford.

CONNECTICUT: Erica Pierre sits on the stoop of her federally-subsidized home, which was infested with mold and rodents.

CONNECTICUT: Three-year-old Izabella and her brother Jayden, 9, sit in the doorway of their home in Hartford, CT. The apartment, subsidized by the Department of Housing and Urban Development, was infested with mold and rodents.

MICHIGAN: Three-year-old Dana Brock bathes in water from a jug during the Flint water crisis.

TEXAS: A volunteer pediatrician in El Paso examines migrant children from Guatemala during the family separation crisis.

LOUISIANA: A boy stands outside the Iberia Parish Jail in New Iberia, LA.

MICHIGAN: Kennedy and Liam Rappleye pose in their West Michigan backyard.

UGANDA: Lela plays with a wrench in her home in Northern Uganda.

UGANDA: Esther holds her sister, Lela at their home in Northern Uganda.

SOUTH AFRICA: Congolese refugees take shelter in a Cape Town, SA church.

KENYA: Maasai children bathe in a hot spring.

ARIZONA: Three horses stand in a field in the Navajo Nation.

TEXAS: A horse in West Texas.

TEXAS: A horse in West Texas.

UTAH: A wild horse grazes beneath Monument Valley.

NAMIBIA: Gabrielle Tigan gallops across desert plains.

NAMIBIA: Horses rest after walking miles through the desert on Namibia's Skeleton Coast.

NAMIBIA: Riders make their descent into the Namibian desert.

NAMIBIA: Riders and their horses climb carefully up a rocky range.