Massive iceburgs that have calved away from the vast Antarctic ice sheet may alter ocean currents, which may also cause a die-off of ocean life due to oxygen deprivation. The question is, will ocean inhabitants be able to migrate quickly enough to be saved, given an outside human-generated impetus of some sort? Will this be necessary? Hopefully scientists will be carefully monitoring the situation in the coming months and years.
Many other questions come to mind. Will this alteration of oceanic currents eventually also affect sea surface temperatures, change the albedo of the planet, and alter our weather and climate? Will this cause the release of some of the carbon dioxide and methane stored in our oceans? Will all of this begin another negative feedback loop? If there is a massive die-off of ocean life, how will we feed the continually growing population of this planet, most of whom live along our coastlines, and many of whom depend upon fishing for survival?
Whether or not the calving of country-sized iceburgs is caused by global warming, I sincerely hope scientists are modeling all of the effects they may have on our planet.
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