Complex systems such as the climate are characterized by thresholds and feedback

Question

Complex systems such as the climate are characterized by thresholds and feedback loops. Describe 2 positive feedback loops for global climate change. Describe 2 negative feedback loops for global climate change. If all of the ice in the Arctic Ocean were to melt, how high would global sea-level rise? If all the ice in Greenland were to melt, how high would global sea-level rise? How likely is this in the next 10 years? Describe three (3) specific cities that would be catastrophically impacted by sea-level rise by 2100. Please provide evidence and mechanisms in your response

Explanation / Answer

1. If all the ice in Arctic Ocean melt the Global sea level rise will not be much because it is much less than Antarctic ice cap area.

2. If all the ice of Greenland is melted it will rise Global sea level to 23 feet height.

The melt of ice in Greenland or Arctic Oceans within 10 years not possible to rise sea levels 23 or 170 feet height. It may take much more time to happen complete ice melt in these area

These 3 cities likely going to be effected by sea level rise by 2100

Recent studies indicated sea level rising will be 8 to 34 inches per year.

Studies have shown rising of temperature up to 1.4° F since 1880

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