Question

speech about global warming antarctic

Answer 1

Global warming antarctic :-

⭐The effects of global warming in Antarctica may include rising temperatures and increasing snow melt and ice loss.

⭐Ice makes cold climate sensitive by introducing a strong positive feedback loop.

⭐Melting of continental Antarctic ice could contribute to global sea level rise.

⭐Climate models predict more snowfall than ice melting during the next 50 years, but the models are not good enough for them to be confident about the prediction.

⭐Antarctica seems to be both warming around the edges and cooling at the center at the same time. Thus it is not possible to say whether it is warming or cooling overall.

⭐There is no evidence for a decline in overall Antarctic sea ice extent.

⭐The central and southern parts of the west coast of the Antarctic Peninsula have warmed by about 2.4 °C. The cause is not known.

⭐Changes have occurred in the upper atmosphere over Antarctica.

=) The area of strongest cooling appears at the South Pole, and the region of strongest warming lies along the Antarctic Peninsula. A possible explanation is that loss of UV-absorbing ozone may have cooled the stratosphere and strengthened the polar vortex, a pattern of spinning winds around the South Pole. The vortex acts like an atmospheric barrier, preventing warmer, coastal air from moving into the continent's interior. A stronger polar vortex might explain the cooling trend in the interior of Antarctica.

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Answer 2

There is no evidence for a decline in overall Antarctic sea ice extent. The central and southern parts of the west coast of the Antarctic Peninsula have warmed by about 2.4 °C. The cause is not known. Changes have occurred in the upper atmosphere over Antarctica