Mayor Michael Bloomberg is asking New Yorkers to share their ideas on how to create a greener city as it grows in the coming years.

His office announced Friday that three public forums are planned for December in eastern Queens, upper Manhattan and south Brooklyn.

They’re designed to help the city update PlaNYC. It’s a master plan to meet the city’s infrastructure, transit, environmental and other needs over the coming decades. It was unveiled on Earth Day 2007.

The update is due on Earth Day next year.

The mayor is asking for help to enhance the quality of life, protect public health and the environment, create economic opportunities and fight climate change.

Forums already been held in other parts of the city.