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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.
A garbage patch is a gyre of marine debris particles caused by the effects of ocean currents and increasing plastic pollution by human populations. 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 ...
Dust to Dust: The Health Effects of 9/11: Air pollution: from September 11 attacks, United States Environmental Protection Agency: Heidi Dehncke-Fisher 2006 Earth: Environmental change: effects on three particular species: Alastair Fothergill, Mark Linfield, and Leslie Megahey: 2007 Earth Days: Environmentalism: environmental movement in the ...
Invasive species are defined by the U.S. Department of Agriculture as non-native to the specific ecosystem, and whose presence is likely to harm the health of humans or the animals in said system. [139] Introductions of non-native species into new areas have brought about major and permanent changes to the environment over large areas.
Water pollution (or aquatic pollution) is the contamination of water bodies, with a negative impact on their uses. [ 1 ] : 6 It is usually a result of human activities. Water bodies include lakes , rivers , oceans , aquifers , reservoirs and groundwater .
Nurdles that escape from the plastic production process into waterways or oceans have become a significant source of ocean and beach plastic pollution. Plastic pellet pollution that has been monitored in studies is mainly found in the sediments and beach areas and is usually polyethylene or polypropylene , the two main plastic polymers found in ...
This accumulation and potential biomagnification of plastic can lead to malnourished organisms and can be a threat to the biodiversity of the ocean. Along with that, the accumulation of microplastics in marine life can be transferred to humans when they consume contaminated organisms which could cause adverse health effects. [19]