Now there have been some shipping risks from Antarctica: As the ice shelfs collapse, they generate icebergs that pose a risk to southern shipping, not Arctic shipping. Here is one example of Antarctic ice shelf collapse: That is not Arctic Ice blown "south" my friends. Bob Wilson
Not caused by global warming either. NASA - Warm Ocean Currents Cause Majority of Ice Loss from Antarctica
Antarctic ice is at historically HIGH levels. Global warming allows the highest Antarctic ice levels in recorded history . The study is how Antarctic ice melts ,not that its a problem. If you want New Zealand under a 2 mile thick glacier ,then think current Antarctic ice melting is a bad thing. Any NASA study ,or any government funded study must include an nice person kiss reference to global warming.
If expanded southern sea ice limits CO2 uptake by that ocean, it would lead to a positive feedback. That wouldn't be good. We need the oceans to continue to remove excess CO2 from the atmosphere.
Volume is only estimated and likely not accurate.But the Sea Ice extent reached a new record high. Antarctic sea ice hit 35-year record high Saturday
It boggles the mind that this response came from the very same poster that linked the NASA story about ice loss back at post #2.
My guess is that Antarctic volume is at record highs, as well as area. There are no accurate measurements of volume though,but if you have data as to lower ice VOLUME then present it.
Here is Exhibit #1: If you have data to show that ICESat and Grace are less accurate over the Antarctic than over the rest of the planet, then present it.
Cute . You are ignoring my post. Antarctic sea ice extant is at historically record high levels. Prove ice volume is lower or STFU.
You have guessed (this thread, post #11) and stated outright (Watching the sun circle the pole, post #11) that Antarctic ice has gained volume, but offered no data to support it. You just try to conflate sea surface area with mass (volume). I have pointed several times how the increased sea ice area can be driven by decreasing ice mass (volume), but you keep ignoring it: Watching the sun circle the pole Antactic sea ice In Antarctica, melting may beget ice Disintegration of floating glaciers could be responsible for freezing of seawater You moved first, claiming that the ice mass (volume) has increased. Prove it or take a timeout. If you cannot, then at least put a cork in your profanity.
The southern ocean has a lot of ice cover now. I asked at 7 above whether that matters for the important sequestration of atmpspheric CO2. Mybe we can learn about that from Algorithm finds missing phytoplankton in Southern Ocean They were doing it wrong, but now think they are doing it right. Could be so. Anyway, the direct ice effects of C cycle are probably photosynthesis in the S ocean, and preventing methane release in the N ocean. These are all I think about. Others will post more on the economics of oceanic shipping near the poles. The Earth's C cycle is changing, ignoring all of our fulimations here. As it develops, the energy balance cannot but follow. So, we are going to get what we get. Better questions might be, (a) what wil happen? (b) how will it affect us? (c) if it looks to need changing, what will that cost?
