How to make biggest difference in the little time we have left

An opportunity for people who are already doing lots to address the greatest threats now facing humanity and nature or who are searching for the best strategy and tactics to do so, to share perspectives, provide empathy, give advice, exchange key information--to help each other be more effective, and to have some laughs and good food and drink. I would love someone to offer their Dining room, so we can make it a potluck.