7-Eleven Renew Campaign

Just saw this at the pump, which is at least making some aware about the relationship of pumping gas and releasing dirty emission. Bold move to connect this. Pump here. Plant trees.

I am still trying to figure out how much of this campaign is green washing vs. real action.
The Facebook posts are all pretty vage. This one is also a bit confusing. Do they mean the carbon that is sequestered by the trees planted stretches over 80,000 acres? I would rather know how much emission 7-Eleven produces by the gas they sell per year and how much of that they offset with this campaign.

On the website they show a list of projects and one is even one with the Green Seattle Partnership I steward with. I would like to know if they pay for the trees, organize events, send volunteers, promote the events or what. It would have been nice if they would have included more details what they actually do.