Nature always preserves its vital balance. To remain healthy, strong and a resource of healing power for mankind, nature including all lakes have the power to establish balance, to self-heal and maintain health in the eco system. As long as mankind stays out of natures self healing activities.
Without healthy nature and healthy clean lakes all mankind and all animals die. No money in the world and no technology made by mankind could save the planet. Only nature can save itself as nature is under direct control by God alone as long as mankind learns from God's nature and stays out of "nature's business".