Article by Laila Abubakara, Anuoluwa James Salemcity, Olusegun K. Abass and Ayobami Matthew Olajuyin. Vol. 15. Bioresource Technology Reports. May 4, 2021.
Report by World Meteorological Organization, with the Global Carbon Project, Intergovernmental Panel on Climate Change, Intergovernmental Oceanographic Commission of UNESCO, UN Environment Programme and UK Met Office. September 9, 2020.