Today on Boston Public Radio:

• Boston Medical Center physician and Massachusetts state Rep. Jon Santiago discussed the impact of the opioid crisis on Boston communities, and his thoughts on addressing it.
• Dr. Aaron Bernstein, pediatrician at Harvard's School of Health, discussed the effects of climate change on young people's health, and its potential influence on their climate activism.
• Steve Hoffman, chairman of the Massachusetts Cannabis Control Commission, spoke about Massachusetts' growing recreational pot industry and the future of vaping in Massachusetts.
• We opened the lines to callers to hear their thoughts on Thursday’s House Intelligence Committee’s hearing.