2023 BBC Green Planet Square Calendar. Each month highlights lush green scenery from the BBC TV show 'Green Planet' with David Attenborough. This official calendar is full of stunning views and creatures alongside interesting facts. There is plenty of room for all your important dates for 2023 in the date panels provided too. Plus this environmentally friendly calendar is presented in a beautiful plastic-free sleeve cover Product Dimensions: 305 X 305 MM Official BBC Green Planet Product Plastic Free Danilo is the leading publisher of officially licensed calendars, diaries, greeting cards, gift wrap and gift bags in the UK. We are a family run company that’s been operating for more than 40 years. Our licenses range from baby to adult. All the paper we use is responsibly sourced and we only work with suppliers and manufacturers that meet our stringent ethical requirements.