Whakaotihia te rerenga e whai ake nei: I te tau 2019, ka noho a Lea hei kaitohutohu āhuarangi ki a Knut Storberget, ā, he karere rangatahi mō Norway i te hui a UNICEF mō te rā o te Ao o ngā Tamariki. I te Oketopa 2019, ko Lea te kaikawe āhuarangi tuatahi mo UNICEF; ko tana 15 tau te pakeke i waiho ai ia hei tuarua o nga kaikawe a UNICEF i roto i te hitori. Ko ia te rima o nga kaitohutohu o Norway me te tuatahi ki te whakatu i te tau 2007. I te
2019 United Nations Climate Change Conference (COP25), ko Lea tetahi o nga tamariki tokorima ki te korero i tetahi huihuinga i whakaritea e UNICEF me te OHCHR.