African nations along the coast of the Indian Ocean hope they can borrow money for rebuilding and conservation efforts.They are planning to offer what they are calling "blue bonds" to companies and investors.A bond is a lending agreement in which the borrower agrees to pay back the money with interest.The United Nations says the money is needed because many wealthy nations have not followed through on promises to pay for projects to fight the effects of climate change.Some of Africa's eastern nations hope that private investment will pay for projects that could help boost the economies of coastal communities, protect the environment, and prepare for bad weather and other effects of climate change.The project is being called the Great Blue Wall.It is similar to another idea, Africa's Great Green Wall plan.The Green Wall project is supposed to help create a barrier of trees and agricultural areas that will protect soil and keep the Sahara Desert from expanding.The Green Wall plan stretches from East to West Africa along the southern edge of the Sahara Desert.
