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Marine debris, also known as marine litter, is human-created solid material that has deliberately or accidentally been released in seas or the ocean.Floating oceanic debris tends to accumulate at the center of gyres and on coastlines, frequently washing aground, when it is known as beach litter or tidewrack.
Two children cleaning beach debris in Ivory Coast A mechanical beach cleaner with tractor attached removing unwanted beach debris. Beach cleaning or clean-up is the process of removing solid litter, dense chemicals, and organic debris deposited on a beach or coastline by the tide, local visitors, or tourists.
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.
The South Pacific garbage patch is an area of ocean with increased levels of marine debris and plastic particle pollution, within the ocean's pelagic zone. This area is in the South Pacific Gyre , which itself spans from waters east of Australia to the South American continent, as far north as the Equator , and south until reaching the ...
The patch is located from 22°N to 38°N and its western and eastern boundaries are unclear. [5] The debris zone shifts by as much as 1,600 km (1,000 mi) north and south seasonally, and drifts even farther south during the El Niño-Southern Oscillation, according to the NOAA. [3]
In 2020, over the course of two expeditions, Ocean Voyages Institute again set the record for the largest cleanup removing 170 short tons (150 t; 340,000 lb) of plastic from the ocean. The first 45-day expedition removed 103 short tons (93 t; 206,000 lb) of plastic [ 73 ] and the second expedition removed 67 short tons (61 t) of plastic from ...
This is an alphabetical list of environmental issues, harmful aspects of human activity on the biophysical environment. They are loosely divided into causes, effects and mitigation, noting that effects are interconnected and can cause new effects.
Due to littering, New Zealand's endangered species are at risk of extinction. The National Litter Audit revealed that 80% of the litter found in the country's waterways originated from the land. Plastic litter in particular threatens wildlife because it contaminates the water and therefore poses health risks to marine wildlife and seabirds.