Marks & Spencer

Plan A is M&S's five-year, 100-point 'eco' plan to tackle some of the biggest challenges facing thier business and the world. It is about working with customers and suppliers to combat climate change, reduce waste, safeguard natural resources, trade ethically and build a healthier nation.

They're calling it Plan A because they believe it's now the only way to do business.

There is no Plan B.