How a moderate West Virginia Democrat could decide what Biden can do on climate change. Plus, the story of a snowstorm, six expiring vaccines and a group of dedicated health-care workers. Read more:One coal state senator holds the key to Biden’s ambitious climate agenda — and it’s not Mitch McConnell. Climate and science writer Sarah Kaplan reports.When Oregon health-care workers got stuck in a snowstorm with expiring vaccines, they got creative. Andrea Salcedo reports. If you value the journalism you hear in this podcast, please subscribe to The Washington Post! We have a deal just for podcast listeners: two years of unlimited access to everything the Post publishes for just $59 total. That comes out to around $2.46 per month. To sign up, go to washingtonpost.com/subscribe