Five things you need to know today, and one thing you really need to read

Good morning, Boston. Here are the five things you need to know to start your busy business day, a new chamber in town, a new Girl Scout cookie, one thing you must read before 9/11 and a robot running parkour. Exclusive: Back-to-work plans being scrapped Nearly half of companies that haven’t already returned to the office now say the Covid-19 Delta variant has caused them to reconsider their return plans, according to a new workplace survey by The Business Journals. PTC is latest to require…