“Sesame Street” is tackling the opioid crisis with the help of Karli, a muppet who recently revealed her mother is battling an addiction to the deadly drugs.

The bright green, yellow-haired “young Muppet in foster care” was introduced in May as part of the Sesame Street Communities initiative, which provides resources for caregivers and nonprofits covering a range of issues.

In an online-only segment Wednesday, Karli tells Elmo and another muppet that she was placed in foster care because her mother had a “grown-up problem” — addiction.

“I used to think a lot of things were my fault, especially my mom’s problem,” Karli tells Elmo.

“But she told me no, it was a grown-up problem and it wasn’t because of anything I did. And she said that she loves me no matter what.”

The series about addiction later introduces Karli’s human friend, 10-year-old Salia, whose “mom and dad have the same problem as my mom: addiction.”

Salia explains that addiction is “getting attracted to something so you keep doing it over and over again. It makes people feel like they need drugs and alcohol to feel OK.”

She then discusses her parents’ recovery mechanisms, including journaling, drawing and meditation.

“It feels good to help other children who went through what I went through,” she says. “I’m proud of Mom and Dad for asking for help and not using drugs and alcohol anymore.”

Creators of the show — which has tackled homelessness, incarceration and death — said they decided to take on this issue because of data that shows 5.7 million children under age 11 live in households with a parent with substance abuse issues.

“There’s nothing else out there that addresses substance abuse for young, young kids from their perspective,” said Kama Einhorn, a senior content manager with Sesame Workshop.

The new online resources are meant “to break down the stigma of parental addiction and help families build hope for the future,” said Sherrie Westin, president of Social Impact and Philanthropy, Sesame Workshop.

“Having a parent battling addiction can be one of the most isolating and stressful situations young children and their families face,” she said. “’Sesame Street’ has always been a source of comfort to children during the toughest of times.”

With Post wires