Week in ReviewTune in around 4:10 for a weekly roundup of news.1. Why 2018 could be a breakthrough year for SASB 2. Why the U.S. must show up for global climate finance3. Influential investors urge 100 carbon-intensive companies to step up climate action Featured stories1. Escalating ESCOs (22:30)Senior writer Cassandra Sweet interviewed Susan Kennedy, founder and CEO of Advanced Microgrid Solutions (AMS), about the new crop of next-generation energy service companies (ESCOs). 2.  All aboard for renewably-powered rails (34:45)An interview with Bill Moyer, author of the book "Solutionary Rail," about why the transition to an electrified national rail system will help catapult the U.S. into a sustainable and equitable future. What's new at GreenBiz?News, events, webcasts — the list goes on. Keep your finger on the pulse of the latest in sustainability by keeping up with GreenBiz.• Save the date for GreenBiz 18, Feb. 6-8 in Phoenix, Arizona. • Check out Center Stage, our new podcast, which features the best of live interviews on sustainable business and clean technology, conducted on stage at GreenBiz and VERGE conferences.• The GreenBiz Intelligence Panel is the survey body we poll regularly throughout the year on key trends and developments in sustainability. To become part of the panel, click here. Enrolling is free and should take two minutes.Stay connectedTo make sure you don't miss the newest episodes of GreenBiz 350, subscribe on iTunes.Have a question or suggestion for a future segment? E-mail us at [email protected].