After breaking all earlier records since 1970, the level of sea ice in Antarctic region has crossed the range of 7.70 million square miles on 20th September this year. The global warming is being blamed for the shift of sea ice from Arctic to Antarctic. It points out towards the face saving of global warming because scientists suggest that climate change still has an active role in this matter.
Scientists from NASA- National Aeronautics & Space Administration also attempted to explain the phenomenon of this shifting of poles. According to the statement of Claire Parkinson who is a lead researcher at U.S space agency’s Goddard Space Flight Center, the overall level of sea ice is decreasing but it cannot imply at the same extent to all the sea water ice throughout the world in the same way of global warming.
Parkinson stated, “The Antarctic sea ice is one of those areas where things have not gone entirely as expected. It’s really not surprising to people in the climate field that not every location on the face of Earth is acting as expected – it would be amazing if everything did”.
Walt Meier who is also a scientist at Goddard also suggested blamed warming climate for the changes which are occurring in weather of different places throughout the world. Therefore the increasing of the sea ice level can be associated to the cold air on the oceans which stimulates the process of freezing of sea water which results in rising levels of the sea ice.
Therefore all apparent conditions of increasing sea ice indicate the involvement of other factors rather than blaming only global warming. Meier also thinks that there are no natural barriers around the ice in Antarctica. They are only divided for our convenience as the divisions are based on geometry and geography only. The frozen sea water covers a large area around continents. Due to the availability of large space, the sea ice is expanding in presence of favorable conditions without any constraints.
According to NSIDC-National Snow and Ice Data center also blamed wind patterns for the rapid ice growth in Antarctica because they think those areas exhibit upward trend in ice extent. The melted ice also decreases water density which stimulates ice formation.
According to their statement, “While the change in saltiness is too small to significantly affect the freezing temperature, the increase in slightly less dense water surrounding Antarctica inhibits mixing, creating conditions that favor ice growth”.