[8] He also represents the African civil society in the committee of the World Bank Forest Carbon Partnership Facility,[9] and also chairs the Collaboration Platform of Climate Research for Development in Africa.
He was a co-convener of the National Convention Executive Council in the 2000s, which influenced the 2010 draft of the Constitution of Kenya.
Mwenda was feted for climate policy activism,[12] and represents civil society in the steering committee of Africa's flagship climate policy and practice coordination platform, ClimDev-Africa,[13] spearheaded by the African Union Commission, African Development Bank and UN Economic Commission for Africa (UNECA).
Mwenda has advocated for accelerated implementation of the Paris Agreement, and has made that a focus at PACJA.
[18] As PACJA executive director, Mithika Mwenda was selected for the Sierra Club's Earth Care Award 2019[19] for his contribution to international environmental protection and conservation.