I have an update if anyone is interested. From April 2nd,
Disney Store UK (Europe) will be supporting Earth Day under the banner "Trees, like friends, need love too". We have a new reusable bag coming out with a European exclusive design on it of Winnie TP and Piglet (and a tree). THey'll be £2 like the other bags and £1 will go to the woodland trust. They'll also be a whole range of matching products - tshirts, mugs, stationary, canvas bags, etc. As well as some kids games and competitions. We started getting stuff in and it's cute.
From that date Disney will be charging for carrier bags BUT it's because money from the carrier bags will go to the Woodland Trust in support of both their normal work AND the 50acre Magical Wood project.
Guests will be able to see how much money is being raised as each store will have a barrometer of money raised to date, I believe they are hoping to raise a total of about £250,000.
Anyway, that's what I have. Hope that helps answer some of the questions about the magical wood and bag tie in.