Global Warming is defined as the increase of the average temperature on Earth. As the Earth is getting hotter, disasters like hurricanes, droughts and
floods are getting more frequent. But it is not only about how much the Earth is warming, it is also about how fast it is warming. There have always
been natural climate changes – Ice Ages and the warm intermediate times between them.
Some studies indicate that airborne pollutants, primarily from factories and automobiles, are responsible for almost a third of all contaminants and
nutrients entering marine waters. An air pollutant is any substance in the air which causes damage to life, ecosystems or property. There are natural
sources of air pollution which result from volcanoes and forest fires. However, most of the air pollution is now a direct result of human activities.
The issue of air pollution and how it relates to our ocean is very complex. The process of pollutants being deposited into the ocean is known as
atmospheric deposition.
Some serious type of marine pollution is nutrient pollution. Nutrient pollution causes many problems, including:
• Harmful algal blooms
• Hypoxic areas or "dead zones"
• Fish kills
• Loss of seagrass and kelp beds
• Coral reef destruction
• Eutrophication
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