Oregon is shipping air conditioners, air purifiers, and power banks to some of its most vulnerable residents, a first-in-the-nation experiment to use Medicaid money to prevent the potentially deadly health effects of extreme heat, wildfire smoke, and other climate-related disasters. The equipment, which started going out in March, expands a Biden administration strategy to move Medicaid beyond traditional medical care and into the realm of social services. At least 20 states, including California, Massachusetts, and Washington, already direct billions of Medicaid dollars into programs such as …