[14] Westbrook became involved with the daughter organisation of the UK Student Climate Network, Teach the Future, and was appointed as Head of Political Engagement.
[15] Through Teach the Future, Westbrook authored the first ever student-written bill, the English Climate Emergency Education Act.
[16] In February 2020 Westbrook organised and spoke at the Parliamentary Reception for the English Climate Emergency Education Act,[17] receiving praise from MPs across the House.
In November 2021, the English Climate Education Emergency Bill was presented to Parliament by the MP Nadia Whittome.
[24] Westbrook has appeared at high-profile events and on national television, including an interview in 2019 on BBC Breakfast alongside Greta Thunberg, discussing the Global Climate Strike and the Green New Deal.
She said "We need the knowledge to be able to deal with this post-climate breakdown world that we're going to be entering, as we exit university and schooling and into the workforce.
[36] In 2021, Westbrook received the prestigious Diana Award for her journalism and environmental activism[37] and was named 'one of the UK's most high profile youth activists' by Sky.