What comes to mind when you think of royalty? Luxurious palaces, the Queen of England, and overused puns on Marie Antoinette’s infamous one-liner?

How about chemical-free gardens, recycling, and sustainable seafood? Ruling families from around the globe are using their media magnetism and sovereign sway to draw attention to a variety of eco-causes, fighting climate change, greening their homelands, and making sure all that cake we’re eating is organic too.

Prince Charles

1. Prince Charles of England

An outspoken proponent of fighting climate change, Prince Charles has an across-the-board interest in environmental issues. He’s advocated for tropical rainforest preservation through The Prince’s Rainforests Project and brought attention to the rapid depletion of global fish stocks. After moving to the Highgrove country estate in Gloucestershire three decades ago, the prince took interest in back-to-basics farming and converted the Home Farm from conventional to organic food production. Deciding that this sustainable farming thing was a brilliant idea, he started Duchy Originals in 1992 to sell organic and sustainably produced goodies, from British tea classics to organic hair and body products.