Sentences with phrase «frozen ocean around»

Not exact matches

This is why it's unlikely that anything alive is more likely to be swimming in the depths of a strange ocean than creeping around above water on frozen orbs, even though the complexity of that life (like the stromatolites and creepy blind life forms thriving around undersea hot - water vents) could be limited by how much light can reach so far into the abyss.

The accelerating melting of land ice into the sea makes the surface of the ocean around Antarctica colder, less salty and more easily frozen, leading to extensive sea ice in some areas.

Colder water can hold more carbon dioxide, however, the deep ocean is already an average of 4C and will freeze (salty or not) at around -1.8 C.

This time around you'll sail not only in open water but also in tight areas and freezing oceans where icebergs can be destroyed to create waves that can damage small ships.

Canada House, London, until 30 November In the region around Floe Edge, where the vast Arctic Ocean meets frozen sea ice, the word «art» translates in Inuktitut as «sanaugait», which taken literally means «things made by hand».

The floating, frozen cap that stretches across the Arctic Ocean shrinks throughout summer until beginning to regrow, typically around mid-September.

They also explain how the «sea ice extent around Antarctica» is very different from the sea ice in the Arctic because the Arctic is not covered by land, but by ocean, albeit mostly frozen most of the time, whereas Antarctica is a vast continent covered by massive ice sheets with the South Pole at its center.

Similarly, if freezing of ice & snow was supplying heat that could warm the oceans - hard to imagine what the process might be but theoretically possible so we need to consider it - this would require the freezing of around 12,500 Billion tonnes of extra ice per year.

And since the temperature difference between the Arctic and the tropics is narrowing, and since it's the temperature difference that drives wind and ocean currents, then the jet stream that normally whizzes around the Arctic circle — thus keeping frozen air in one place and separating it from the warm breezes of the south — is, the theory goes, slowing, thus allowing warm moist air to penetrate into the north.

The biggest difference is that the Arctic sea ice forms in a huge ocean surrounded by the northern hemisphere land masses, while the Antarctic sea ice forms as a fringe around a vast frozen continent.

As the Antarctic sea ice reached record levels, scientists floated several hypotheses, including possible changes in the ozone hole over Antarctica, or increased amounts of fresh water — which freezes more easily — on the surface of the ocean around Antarctica.

Only about 818,000 square miles of the ocean around Antarctica was frozen over with sea ice on March 1, according to data analyzed and published by the National Snow and Ice Data Center (NSIDC).

It may be that oceans around the Equator would not freeze such that there would always be some water vapour.

RealClimate is wonderful, and an excellent source of reliable information.As I've said before, methane is an extremely dangerous component to global warming.Comment # 20 is correct.There is a sharp melting point to frozen methane.A huge increase in the release of methane could happen within the next 50 years.At what point in the Earth's temperature rise and the rise of co2 would a huge methane melt occur?No one has answered that definitive issue.If I ask you all at what point would huge amounts of extra methane start melting, i.e at what temperature rise of the ocean near the Artic methane ice deposits would the methane melt, or at what point in the rise of co2 concentrations in the atmosphere would the methane melt, I believe that no one could currently tell me the actual answer as to where the sharp melting point exists.Of course, once that tipping point has been reached, and billions of tons of methane outgass from what had been locked stores of methane, locked away for an eternity, it is exactly the same as the burning of stored fossil fuels which have been stored for an eternity as well.And even though methane does not have as long a life as co2, while it is around in the air it can cause other tipping points, i.e. permafrost melting, to arrive much sooner.I will reiterate what I've said before on this and other sites.Methane is a hugely underreported, underestimated risk.How about RealClimate attempts to model exactly what would happen to other tipping points, such as the melting permafrost, if indeed a huge increase in the melting of the methal hydrate ice WERE to occur within the next 50 years.My amateur guess is that the huge, albeit temporary, increase in methane over even three or four decades might push other relevent tipping points to arrive much, much, sooner than they normally would, thereby vastly incresing negative feedback mechanisms.We KNOW that quick, huge, changes occured in the Earth's climate in the past.See other relevent posts in the past from Realclimate.Climate often does not change slowly, but undergoes huge, quick, changes periodically, due to negative feedbacks accumulating, and tipping the climate to a quick change.Why should the danger from huge potential methane releases be vievwed with any less trepidation?