Which bioclimatic region in Africa is experiencing the massive expansion of the 'Great Green Wall' initiative to combat desertification?

Which of the following human activities is a primary cause of desertification and soil degradation?

The Intergovernmental Panel on Climate Change (IPCC) was jointly established by which organizations?

Consider the following statements regarding large dam construction projects: Statement (i): Dam construction and reservoir submergence lead to significant loss of arable agricultural land and forests. Statement (ii): These submergence losses are borne disproportionately by communities residing in downstream command areas. Select the correct option: