Study suggests polar bears could face extinction by 2100 due to climate change

According to a study by  scientists, it is envisioned that polar bears are likely to vanish if greenhouse gas emissions continue to stay same way. y have predicted where and how polar bears will vanish. However, few species of polar bears in Arctic will be gone by 2100, reports suggest.

Polar bears he towards extinction 

As per a story published in Nature Climate Change, in year 2040, it is highly likely that many polar bears will begin to develop problems pertaining to reproductive failures, furr contributing to ir extinction. study investigates how two s of greenhouse gas emissions can contribute to extinction of polar bears. Study suggest that re are less than 26,000 polar bears left, spre out across 19 different regions. As per researchers, polar bears will only remain in Queen Elizabeth Islands, which is rrnmost cluster in Cana’s Arctic group of islands by end of century. This will be due to business-as-usual emissions scenario. Even if greenhouse emissions are regulated, polar bears are likely to become extinct in Arctic circle by 2080. 

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Peter Molnar, a biologist at University of Toronto said, it has been clear for some time that Polar bears will suffer dam created by greenhouse emissions. However, what was unclear was time and reason of ir extinction. body knew wher it would happen early or late in century. He ded, even if emissions are regulated, population would become extinct in a few parts before end of century. se areas include, Hudson Bay, Davis Strait, and sourn Hudson Bay. 

To reach out on a conclusion as to when polar bears will reach ir critical physiological limit, Molnar along with his colleagues, regulated ir weights and modelled animal’s energy use. aim was to come to threshold number of days y can fast for. Chief Scientist for Polar Bears International and a co-author of study, Steven Amstrup, said that se projections are on conservative side. He furr ded, models might have a better body condition of bears at beginning of fasting period. 

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Polar bears are species which can only be saved if habitat is protected. process of saving habitat involves regulation of climate change, which is happening at a very fast pace. Amstrup said, people need to understand seriousness of issue and start working on it. 

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