Blaithin, 17, and Niamh, 16, from St Catherine’s College Armagh, were leading the event, which was organised by the British Council, as UN secretary generals.
They were tasked with bringing all the participants to an agreement on reducing greenhouse gas emissions, supporting developing nations and adapting to the effects of climate change.
Blaithin said despite COP30 taking place thousands of miles away, it was important to her generation.
“As a young person, knowing that we will face the impact of what’s going to happen in the future, it’s very relevant that we understand what is going on,” she said.
“We have to live the life that’s going to be controlled by what happens today.”
Niamh thinks more could be done to educate young people about climate change.
“Social media is a big part of young people’s lives, so I feel if we took more to social media for climate action, it would really influence young people today,” she said.