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Human activities affect marine life and marine habitats through overfishing, habitat loss, the introduction of invasive species, ocean pollution, ocean acidification and ocean warming. These impact marine ecosystems and food webs and may result in consequences as yet unrecognised for the biodiversity and continuation of marine life forms. [3]
While marine pollution can be obvious, as with the marine debris shown above, it is often the pollutants that cannot be seen that cause most harm.. Marine pollution occurs when substances used or spread by humans, such as industrial, agricultural and residential waste, particles, noise, excess carbon dioxide or invasive organisms enter the ocean and cause harmful effects there.
These human-caused collections of plastic and other debris are responsible for ecosystem and environmental problems that affect marine life, contaminate oceans with toxic chemicals, and contribute to greenhouse gas emissions. Once waterborne, marine debris becomes mobile.
How bad is the world’s plastic problem? Few disagree that the level of pollution has reached alarming heights. Between 2000 and 2019, annual production of plastics doubled to 460 million tons.
Deja el Plastico (Ditch the Plastic) is aimed at reducing plastic pollution in California; its efforts helped lead to the passage of the state’s ban on single-use plastic bags in 2016.
Our oceans are full of plastic — an estimated 200 million metric tons. And it's the microscopic pieces that could be the biggest threat. Addressing the planet's ocean plastics problem
Plastic pollution has also greatly negatively affected our environment. "The pollution is significant and widespread, with plastic debris found on even the most remote coastal areas and in every marine habitat". [77] This information tells us about how much of a consequential change plastic pollution has made on the ocean and even the coasts.
The U.S. and 174 other nations failed to agree on a new treaty to reduce the plastic pollution contaminating our environment, food, water, and even our bodies.