Ferries operating in the famous Sydney Harbour occasionally run on a biofuel blend made entirely from recycled cooking oil sourced from local restaurants.

A closer look

Ferries operating in the famous Sydney Harbour occasionally run on a biofuel blend made entirely from recycled cooking oil sourced from local restaurants. In a bid to be slightly more environmentally friendly, transit authorities started mixing deep-fryer grease with standard diesel, meaning the majestic boats cruising past the Opera House often leave a faint, lingering aroma of cheap french fries in their wake. Commuters basically get to enjoy a scenic ocean breeze deeply tainted by the smell of a fast-food drive-through. While it is undeniably a creative approach to reducing carbon emissions, one has to wonder how many seagulls have suffered severe emotional trauma trying to locate the source of the delicious fried food scent emanating from a massive metal ship