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Since 1970, there has been an increase in stratification in the upper ocean due to global warming and, in some areas, salinity changes. [14] The salinity changes are caused by evaporation in tropical waters, which results in higher salinity and density levels. Meanwhile, melting ice can cause a decrease in salinity at higher latitudes. [14]
Due to global warming and increased glacier melt, thermohaline circulation patterns may be altered by increasing amounts of freshwater released into oceans and, therefore, changing ocean salinity. Thermohaline circulation is responsible for bringing up cold, nutrient-rich water from the depths of the ocean, a process known as upwelling. [22]
The salts come from erosion and transport of dissolved salts from the land. The surface salinity of the ocean is a key variable in the climate system when studying the global water cycle, ocean–atmosphere exchanges and ocean circulation, all vital components transporting heat, momentum, carbon and nutrients around the world. [84]
Some climate change effects: wildfire caused by heat and dryness, bleached coral caused by ocean acidification and heating, environmental migration caused by desertification, and coastal flooding caused by storms and sea level rise. Effects of climate change are well documented and growing for Earth's natural environment and human societies. Changes to the climate system include an overall ...
Scientists have said ocean heat is being supercharged by human-caused global warming, boosted by El Niño, a natural climate pattern marked by higher-than-average ocean temperatures.
Marine waters cover more than 70% of the surface of the Earth and account for more than 97% of Earth's water supply [1] [2] and 90% of habitable space on Earth. [3] Seawater has an average salinity of 35 parts per thousand of water. Actual salinity varies among different marine ecosystems. [4]
The ocean is a critical climate solution—although concerns exist around some ‘blue carbon’ methods. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290 ...
A Jacksonville professor is part of an international group of researchers warning of another threat from climate change: salinity levels in the ocean.