Many climate scientists set the upper limit of carbon dioxide that we should not cross at 560 ppm. in 2011, the atmospheric concentration was 390 ppm. unless dramatic changes are put into place, we will probably surpass the 560 ppm threshold before the end of this century. what predicted effects could this bring? question 5 options: 1) melting of the greenland ice sheet2) glacier and permafrost melt3) ocean acidification4) rapidly accelerated warming5) all of the above are correct.

5) All of the above are correct.

Explanation:

Carbon dioxide is a greenhouse gas. When its concentration in the atmoshpere rises above normal, it can affect the climate pattern and lead to climate change.

Carbon dioxide prevents outgoing solar radiation from escaping the earth's atmosphere and this warms the earth surface. The more the presence of the gas, the more heating that would result.

Excessive release of carbon dioxide causes a phenomenon known as global warming. Global warming is simply the warming of the globe.

The consequences includes:

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