"The pipeline threatens the water source of the indigenous people, as well as sacred sites."
Mr Snelgar said for him, it was about protecting the water for future generations and the 1.8 million people that lived downstream along the Missouri River.
"It is also an exercise of sovereignty."
He said Maori needed to foster relationships with other indigenous peoples.
"I would also encourage rangatahi to aim high and keep aiming. An thing is possible and if I can go to Harvard, anyone can! As Maori we have a unique worldview to share that is truly invaluable."
Mr Sneglar said he had affiliations with Ngati Whakaue and hoped to connect with whanau this summer, as he was possibly returning to Rotorua for work.
"My whanau are the Wipaki whanau from Tunohopu. I also descent from Mokomoko on my Te Whakatohea side."
Mr Sneglar studied law at Auckland University where he was the top graduating Maori law student then went on to Havard Law School.