Pollution as a result of human population growth threatens many of Earth’s ecosystems. Human Population as a Source of Pollution As the human population grows, pollution from human activity also …
Pollution refers to the presence of environmental contaminants in quantities large enough to cause damage, deterioration, or toxicity. Such contaminants are known as pollutants. While some forms of pollution have natural causes, the term is used almost exclusively to refer to pollution caused by human activity.
Marine pollution is the detrimental alteration of a portion of an ocean or ocean coastline. Pollution is often a threat to any organism living in or depending upon the ocean. Human impact on coastal and open ocean habitats comes in many forms: nutrient loading from agricultural runoff and sewage discharges, toxic chemical inputs from industry and agriculture, petroleum spills, and inert solid wastes.
Among the greatest challenges humankind has faced throughout its history, feeding the world’s hungry ranks at or near the very top of the list.