Mezue ahịrịokwu na-esonụ: N'afọ 2019, Lea ghọrọ onye ndụmọdụ Knut Storberget maka ihu igwe ma bụrụ onye nnọchi anya ndị ntorobịa maka Norway na nzukọ UNICEF maka ụbọchị ụmụaka ụwa. N'ọnwa Ọktoba 2019, Lea ghọrọ onye nnọchi anya ihu igwe mbụ maka UNICEF; afọ iri na ise ya mere ya onye nnọchi anya UNICEF nke abụọ na akụkọ ntolite. Ọ bụ onye nnọchi anya Norway nke ise na onye izizi a họpụtara kemgbe 2007. Na
2019 United Nations Climate Change Conference (COP25), Lea bụ otu n'ime ụmụaka ise na-eme ihe ike na-ekwu okwu na mmemme nke UNICEF na OHCHR haziri.