Search results
Results from the WOW.Com Content Network
Marine debris is mainly discarded human rubbish which floats on, or is suspended in the ocean. Plastic pollution is harmful to marine life . Another concern is the runoff of nutrients (nitrogen and phosphorus) from intensive agriculture , and the disposal of untreated or partially treated sewage to rivers and subsequently oceans.
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]
The impact of human activity on the chemistry of the Earth's oceans has increased over time, with pollution from industry and various land-use practices significantly affecting the oceans. Moreover, increasing levels of carbon dioxide in the Earth's atmosphere have led to ocean acidification, which has negative effects on marine ecosystems.
Silt in runoff from construction sites or sewage, logging, slash and burn practices land clearing sites; Salt: Freshwater salinization is the process of salty runoff contaminating freshwater ecosystems. [20] Human-induced salinization is termed as secondary salinization, with the use of de-icing road salts as the most common form of runoff.
Human activities such as pumping of groundwater and land reclamation break the equilibrium, leading to seawater intrusion, development of a seepage zone or pollution of the ocean. [5] [6] The interaction between groundwater system and the ocean is complex. Preventive actions and engineering measurements are adopted to mitigate the impacts.
A 2-mile stretch of Laguna Beach coastline has been closed to swimmers and surfers due to a sewer line break that spilled almost 95,000 gallons, officials said. A 95,000-gallon sewage spill closes ...
Topsoil runoff from farm, central Iowa (2011). Water pollution in the United States is a growing problem that became critical in the 19th century with the development of mechanized agriculture, mining, and manufacturing industries—although laws and regulations introduced in the late 20th century have improved water quality in many water bodies. [1]
If you love Scrabble, you'll love the wonderful word game fun of Just Words. Play Just Words free online!