ENVIRONMENT
03/18/2010 05:12 am ET Updated Dec 06, 2017

350 Protests In New York City: Thousands March Across Brooklyn Bridge

With the focus on bringing carbon dioxide levels down from 385 parts per million (and rising) to 350 ppm -- the level scientists have deemed safe as the upper limit in the atmosphere -- New Yorkers took to the streets to take part in 350.org's International Day of Climate Action.

Walking across the Brooklyn Bridge to Times Square was one of 5,200 events that took place around the world on Saturday, October 24, 2009. The Huffington Post's citizen journalism unit was there and filmed the rainy-day event:

PHOTO GALLERY
350 New York City - March Across Brooklyn Bridge To Times Square

Get HuffPost Green On Facebook and Twitter!