In Burkina Faso, I saw a government working to import drought resistant seeds and better manage scarce water supplies, helped by nations like Brazil.

• 当蓝藻细胞达到一定程度时，蓝藻的“密集孽生”会使水体变色、引起泡沫、散发臭气、影响贝类和鱼类的生存，还会使水质大幅度下降。