Giant chain store Costco is making toilet paper out of virgin trees from the vast Canadian boreal forest.

The boreal forest is home to incredible animals like the grizzly bear and caribou -- and it protects us from dangerous climate change. 

But loggers are sawing down it down at a terrifying rate -- and Costco is a driving force.

SumOfUs members like you have forced Costco executives to the negotiating table by raising the alarm. But this week, negotiations with Costco have gone cold -- can you chip in to turn up the heat with mobile billboards to circle their HQ?