Green Day is coming to the Hong Kong Book Fair. But it's not the band - it's a campaign organised by Greenpeace for the duration of the fair to promote the use of Ancient Forest Friendly (AFF) paper in the publishing industry. More than 80 per cent of the world's original ancient forests have been destroyed or degraded, causing serious climate changes. Paper production uses more than 40 per cent of logged timber, and the demand for paper is on the rise with the booming global publishing industry. Since the introduction of Greenpeace's Book Campaign in 2000, more than six million books have been printed on recycled paper. Many publishers around the world have made commitments to use only AFF paper, while famous authors like J.K. Rowling, Isabel Allende and Margaret Attwood have pledged to support the campaign. As a consumer, you can support the campaign by looking for the AFF logo when you buy books, magazines and newspapers. You can also write to your favourite author and publishers and ask them to adopt environmentally and socially responsible procurement policies. Signing up to support the campaign means our cultural legacy won't come at the expense of our natural heritage.