Regarding the obstacles faced by young activists

...Young activists face additional obstacles when they seek to make their voices heard. [Mary Lawlor, the Special Rapporteur on the Situation of Human Rights Defenders] identified intimidation and harassment in online spaces and the media, lack of adequate support from traditional allies, academic sanctions, and legal, administrative, and practical barriers to participation in civic space as just some of the hurdles faced by child and youth activists. Despite these barriers, she notes, “Child and youth human rights defenders have been at the forefront of human rights movements and have achieved a significant impact, which should be acknowledged, celebrated and highlighted.”
From the report On Thin Ice: Disproportionate Responses to Climate Change Protesters in Democratic Countries. Climate Rights International. September 2024.

Regarding the role of museums in climate protests

[Protesters] believe that museums hold unique significance in the fight against climate change. They told Climate Rights International that museums are institutions that safeguard our history. They believe museums act as cultural institutions and often serve as symbolic representations of societal values and heritage. By staging protests at museums, some activists believe they can strategically draw attention to the interconnectedness of environmental issues and cultural preservation, emphasizing the threat climate change poses to both natural ecosystems and human history."
From the report On Thin Ice: Disproportionate Responses to Climate Change Protesters in Democratic Countries. Climate Rights International. September 2024.
We have been working with amazing young people here in Hawai'i. [...] The young people today, they are determined. They understand what's happening to their planet, and they are committed to advocating for a better future for them and generations to come.
Julia Olson, as quoted in Young climate activists just won a ‘historic’ settlement by Victoria Bisset, Washington Post. June 28, 2024. I've ligtly edited/shortened Olson's quote.
Olson is the co-executive director and chief legal counsel of Our Children's Trust, which has been representing young people in lawsuits claiming that government inaction (or worse) has violated young people's right to a clean environment. The article outlines a “historic” settlement between youth activists and the state of Hawai'i that requires the state to “cut its transportation sector’s planet-warming pollution and to consult with young people about its climate impact.”