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Drivers honked, rolled their windows down and yelled to the more than 100 people lining the Higgins Avenue Bridge in support of the Standing Rock Sioux tribe in North Dakota.

One woman on the sidewalk put down her sign to film her young daughter with her phone.

“I want to have water!” the girl yelled, quickly followed with “my ears hurt,” after a car drove by honking wildly.

At 4:21 p.m. Tuesday around 65 people lined the west side of the bridge, with signs, while one man beat a drum.

At 4:43 that number had doubled, with supporters lining both sides of the bridge to raise awareness about the threat they feel Dakota Access Pipeline represents.

“Anyone who pays any attention to the science knows we have to make a change,” said John Woodland, with 350 Missoula. Continuing to invest in fossil fuels, which the pipeline supports, isn’t sustainable, he said.

Woodland said this protest was just one of many across the country Tuesday organized by 350, a nonprofit that organizes protests and movements against climate change.