How would higher temperatures affect the arctic?

Answer 1

Higher temperatures will seriously impact the arctic.

Average annual temperature in the arctic has warmed 2.9°C since the start of the 20th century. Given that the arctic is characterized by sea ice, snow, and frozen soil, and temperatures below freezing, increase in temperatures will have profound and wide-reaching effects.

A shortage of sea ice has already spelled trouble for polar bears, that now have to swim longer distances between the ice. Loss of sea ice is a serious concern for polar bears. Read more about polar bears and climate change here. Seals, walruses, and some species of fish are also adapted to sea ice cover.

Warmer waters in the arctic have also brought in species that previously were not adapted to these cold climates. For example humpback and fin whales have been found in this region during times when they previously stuck to warmer waters. While this may seem like a good thing, humpback and fin whales are now competing with bowhead whales. Read about this recent study here.

Many people also live in the arctic and their lives will be affected. Land rights will change as the land and ice literally changes and disappears, hunting will be negatively impacted as species become more rare or change their migration patterns and/or shift to suitable habitat, transportation routes will change as ice melts, weakening permafrost is causing shifts in roads and buildings, and so forth.

Thus, temperatures warming at such an accelerated rate make it challenging for species adapted to this cold, ice-covered area to adapt. Other species adapted to warmer temperatures are also moving into the area, providing competition.

To learn more about how the arctic is fairing in 2015, see this link or this article.

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Answer 2

Higher temperatures in the Arctic would lead to accelerated melting of sea ice and glaciers, resulting in rising sea levels and altering ecosystems. It would also impact wildlife populations, such as polar bears and seals, by reducing their habitat and food sources. Additionally, thawing permafrost could release large amounts of greenhouse gases, further exacerbating climate change.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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