The sun begins to shine on the rally after a period of rain. Hundreds of students and community members attend the “Let The Youth Be Heard” rally in Eugene, Ore. in support of the 21 young Americans behind the Juliana v. United States climate change lawsuit on Oct. 29, 2018. (Sarah Northrop/Emerald)

Connie Peabody stands on a street corner by the Federal Courthouse in Eugene, Ore., waving a planet Earth flag as people cross the street and head to the rally. Hundreds of students and community members attend the “Let The Youth Be Heard” rally in Eugene, Ore. in support of the 21 young Americans behind the Juliana v. United States climate change lawsuit on Oct. 29, 2018. (Sarah Northrop/Emerald)

Rally attendees fill the steps of the Wayne Morse Federal Courthouse as sporadic sunshine and clouds move through the sky. Hundreds of students and community members attend the “Let The Youth Be Heard” rally in Eugene, Ore. in support of the 21 young Americans behind the Juliana v. United States climate change lawsuit on Oct. 29, 2018. (Sarah Northrop/Emerald)

A sign protesting the U.S. Supreme Court’s decision to postpone the hearing of Juliana v. United States and advocates for the 21 youth plaintiffs’ right to present evidence in court. Hundreds of students and community members attend the “Let The Youth Be Heard” rally in Eugene, Ore. in support of the 21 young Americans behind the Juliana v. United States climate change lawsuit on Oct. 29, 2018. (Sarah Northrop/Emerald)

The Department of Homeland Security keeps watch on the action at the courthouse. Hundreds of students and community members attend the “Let The Youth Be Heard” rally in Eugene, Ore. in support of the 21 young Americans behind the Juliana v. United States climate change lawsuit on Oct. 29, 2018. (Sarah Northrop/Emerald)

The lawsuit is branded with #youthvgov and the plaintiffs are represented by nonprofit Our Children’s Trust. Hundreds of students and community members attend the “Let The Youth Be Heard” rally in Eugene, Ore. in support of the 21 young Americans behind the Juliana v. United States climate change lawsuit on Oct. 29, 2018. (Sarah Northrop/Emerald)

“Earthlings unite!”: Hundreds of students and community members attend the “Let The Youth Be Heard” rally in Eugene, Ore. in support of the Juliana v. United States climate change Supreme Court case on Oct. 29, 2018. (Sarah Northrop/Emerald)

“She needs us”: A rally participant displays a sign advocating for mother Earth. Earlier at the rally, former Eugene mayor Kitty Piercy said that the youths of today are “saving our planet, and in doing so, saving us.” Hundreds of students and community members attend the “Let The Youth Be Heard” rally in Eugene, Ore. in support of the 21 young Americans behind the Juliana v. United States climate change lawsuit on Oct. 29, 2018. (Sarah Northrop/Emerald)

“Fierce urgency of now”: Hundreds of students and community members attend the “Let The Youth Be Heard” rally in Eugene, Ore. in support of the 21 young Americans behind the Juliana v. United States climate change lawsuit on Oct. 29, 2018. (Sarah Northrop/Emerald)

Some at the rally present a timeline of signs explaining the progression of how climate change has been handled in the U.S. The Constitutional Climate Change lawsuit itself was filed in 2015 and garnered attention in 2016 when District Court Judge Ann Aiken upheld the case under the idea that access to a clean environment is a fundamental right. Hundreds of students and community members attend the “Let The Youth Be Heard” rally in Eugene, Ore. in support of the 21 young Americans behind the Juliana v. United States climate change lawsuit on Oct. 29, 2018. (Sarah Northrop/Emerald)

An array of umbrellas pop up in the hands of the rally attendees as they are met with intermittent rain showers in front of the courthouse. Hundreds of students and community members attend the “Let The Youth Be Heard” rally in Eugene, Ore. in support of the 21 young Americans behind the Juliana v. United States climate change lawsuit on Oct. 29, 2018. (Sarah Northrop/Emerald)

A young rally attendee waves a sign. Hundreds of students and community members attend the “Let The Youth Be Heard” rally in Eugene, Ore. in support of the 21 young Americans behind the Juliana v. United States climate change lawsuit on Oct. 29, 2018. (Sarah Northrop/Emerald)

Kelsey Juliana, 22, of Eugene, Ore. is a student activist who has played a major role in the Juliana v. United States case. At 19, she along with 20 others, submitted the Constitutional Climate Change lawsuit against the U.S. government. Hundreds of students and community members attend the “Let The Youth Be Heard” rally in Eugene, Ore. in support of the 21 young Americans behind the Juliana v. United States climate change lawsuit on Oct. 29, 2018. (Sarah Northrop/Emerald)

“Let the youth be heard”: Eugene Students look out in to the crowd of rally attendees in front of them as elementary school-aged students speak to the crowd about the importance of preserving the planet. Hundreds of students and community members attend the “Let The Youth Be Heard” rally in Eugene, Ore. in support of the 21 young Americans behind the Juliana v. United States climate change lawsuit on Oct. 29, 2018. (Sarah Northrop/Emerald)

Kelsey Juliana, 22, of Eugene, Ore. is a student activist who has played a major role in the Juliana v. United States case. The lawsuit itself, filed in 2015, is being brought forward by 21 youth plaintiffs against the United States and its executive branch and officers. Hundreds of students and community members attend the “Let The Youth Be Heard” rally in Eugene, Ore. in support of the 21 young Americans behind the Juliana v. United States climate change lawsuit on Oct. 29, 2018. (Sarah Northrop/Emerald)

Rally attendees cheer after each speaker. Hundreds of students and community members attend the “Let The Youth Be Heard” rally in Eugene, Ore. in support of the Juliana v. United States climate change Supreme Court case on Oct. 29, 2018. (Sarah Northrop/Emerald)

Hundreds of students and community members attend the “Let The Youth Be Heard” rally in Eugene, Ore. in support of the Juliana v. United States climate change Supreme Court case on Oct. 29, 2018. (Sarah Northrop/Emerald)

Advocates for Juliana v. United States fill the steps of the Wayne Morse Federal Courthouse. Hundreds of students and community members attend the “Let The Youth Be Heard” rally in Eugene, Ore. in support of the 21 young Americans behind the Juliana v. United States climate change lawsuit on Oct. 29, 2018. (Sarah Northrop/Emerald)

Rally attendees hold up a uniform array of signs advocating for the young plaintiffs’ right to be heard in court. Hundreds of students and community members attend the “Let The Youth Be Heard” rally in Eugene, Ore. in support of the 21 young Americans behind the Juliana v. United States climate change lawsuit on Oct. 29, 2018. (Sarah Northrop/Emerald)

The Department of Homeland Security officers block the entrance to the Wayne Morse Federal Courthouse on Mill Street. Hundreds of students and community members attend the “Let The Youth Be Heard” rally in Eugene, Ore. in support of the 21 young Americans behind the Juliana v. United States climate change lawsuit on Oct. 29, 2018. (Sarah Northrop/Emerald)