The study reported that the change in water circulation in the Southern Southern Ocean largest ice cap in the world. This is the one from East Antarctica. The change in water circulation is caused by different wind patterns and climate change.
Here is the warmer water and thesea level rise they can harm marine life and threaten coastal human settlements. Global warming should be limited to less than 1.5°C. As a result, greenhouse gas emissions should be reduced by 43% by 2030 and close to zero by 2050.
Ice sheets are ice created by precipitation on Earth. The Antarctic ice sheet is melting and sea levels are rising. The research focused on the Aurora Subglacial Basin in the Indian Ocean, a specific region that is part of the East Antarctic Ice Sheet. If the basin were to melt completely, the sea would rise to a level of 5.1 meters.
Scientists looked at 90 years of oceanographic observations for the Aurora. the rate of warming of the oceans it has tripled since 1990. For example, that warming is associated with climate change. The answer is found in the westerlies over the Southern Ocean. Since the 1960s, these winds have moved south towards Antarctica. This phenomenon appears to be due to the increase of greenhouse gases in the atmosphere. So westerly winds approach Antarctica in the summer and bring warm water.
The focus of the research then shifted mainly to the Vanderford Glacier in East Antarctica. Here, warm water was observed to replace colder water. The forecast is that of a sharp deterioration in the movement of warm water to Antarctica. In the past, it was believed that warming arrived at the surface layers of the ocean first. However, now it is certified that the one that heats up first is the deepest water.
THE climate changes have a strong influence on marine life. Antarctic krill, for example, reproduce by leaving its eggs deep in the ocean. Heating can affect egg development. It consequently harms krill and predators such as penguins, whales and seals.
Source: Lega Nerd
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