As the last ice age began, some 125,000 years ago, part of the water evaporated from the world's oceans and fell as
snow at the poles and in the northern parts of the continents to slowly form ice caps and glaciers.
19 Melting Ice and Rising Sea Levels If the global temperature increased, the amount of ice and
snow at the poles would decrease, causing sea levels around the world to rise.
Not exact matches
If Pluto were a completely smooth sphere, it would have either a permanent swath of nitrogen ice
at the equator or seasonal
snow caps
at its
poles.
Snow falls lightly
at the
poles, but as each year's accumulation is compressed into ice, it encases chemical hallmarks of the atmosphere and climate, including traces of major eruptions.
15 But it doesn't
snow very much
at the
poles.
The camera could be aimed
at a marked
pole driven into the berg to show how quickly the
snow level dropped as the result of melting.
The existence of the
pole had been known, but the inhospitable landscape presented a barrier until Amundsen's party made the dangerous trek across ice and
snow to stand
at the geographical South
Pole on this day a century ago.
Back
at camp we anchor our equipment in the
snow with bamboo
poles so it doesn't blow away.
Regarding the possibility that human emission - related warming will prevent the next ice age, I read somewhere that technically we are still in an ice age, the inter-glacial part of it, and that an ice age is defined as when the Earth has permenent
snow and ice
at the
poles.
The central motif, played gently
at first on a harp and then far more disconcertingly on a scratchy, Scandinavian hardanger fiddle, is the perfect accompaniment for the opening of the film: the
snow - white screen, on which we gradually make out a bird in flight, and then the approaching car, framed by vertical telephone
poles (another inverse nod to The Third Man)?
It is not that the polar regions are amplifying the warming «going on»
at lower latitudes, it is that any warming going on AT THE POLES is amplified through inherent positive feedback processes AT THE POLES, and specifically this is primarily the ice - albedo positive feedback process whereby more open water leads to more warming leads to more open water, etc. *** «Climate model simulations have shown that ice albedo feedbacks associated with variations in snow and sea - ice coverage are a key factor in positive feedback mechanisms which amplify climate change at high northern latitudes...&raqu
at lower latitudes, it is that any warming going on
AT THE POLES is amplified through inherent positive feedback processes AT THE POLES, and specifically this is primarily the ice - albedo positive feedback process whereby more open water leads to more warming leads to more open water, etc. *** «Climate model simulations have shown that ice albedo feedbacks associated with variations in snow and sea - ice coverage are a key factor in positive feedback mechanisms which amplify climate change at high northern latitudes...&raqu
AT THE
POLES is amplified through inherent positive feedback processes
AT THE POLES, and specifically this is primarily the ice - albedo positive feedback process whereby more open water leads to more warming leads to more open water, etc. *** «Climate model simulations have shown that ice albedo feedbacks associated with variations in snow and sea - ice coverage are a key factor in positive feedback mechanisms which amplify climate change at high northern latitudes...&raqu
AT THE
POLES, and specifically this is primarily the ice - albedo positive feedback process whereby more open water leads to more warming leads to more open water, etc. *** «Climate model simulations have shown that ice albedo feedbacks associated with variations in
snow and sea - ice coverage are a key factor in positive feedback mechanisms which amplify climate change
at high northern latitudes...&raqu
at high northern latitudes...»
For example, conditions
at the
poles affect how much heat is retained by the earth because of the reflective properties of ice and
snow, the world's ocean circulation depends on sinking in polar regions, and melting of the Antarctic and Greenland ice sheets could have drastic effects on sea level.
At the same time that record heat is occurring in the polar regions and elsewhere, snow is forecasted (scheduled) to fall as far south as Chihuahua, Mexico (2017 also saw record low ice at BOTH poles
At the same time that record heat is occurring in the polar regions and elsewhere,
snow is forecasted (scheduled) to fall as far south as Chihuahua, Mexico (2017 also saw record low ice
at BOTH poles
at BOTH
poles).
Ice extent
at the
poles and
snow cover can also be extremely variable and widespread.
And remember, the satellite data are one small part of a vast amount of data that overwhelmingly show our planet is warming up: retreating glaciers, huge amounts of ice melting
at both
poles, the «death spiral» of arctic ice every year
at the summer minimum over time, earlier annual starts of warm weather and later starts of cold weather, warming oceans, rising sea levels, ocean acidification, more extreme weather, changing weather patterns overall, earlier
snow melts, and lower
snow cover in the spring...
This snowpack accumulation near the
poles, which gets its water via the Arctic and Antarctic oceans, that in turn rob it from equatorial latitudes of our oceans, also results in a reduction in the earth's spin axis moment of inertia and causes the spin rate to increase as evidenced in the recent history of the rate
at which Leap Seconds are added to our calendar (see Wysmuller's Toucan Equation for more on this evidence that during this warm time with much greater polar humidity, earlier seasonal, later seasonal and heavier
snows are beginning to move water vapor from the oceans to the
poles to re-build the polar ice caps and lead us into a global cooling, while man - made CO2 continues to increase http://www.colderside.com/faq.htm).
I suggest you look
at global average temperature variations of the last 800,000 years inferred from Antarctica, Arctic and Greenland ice cores and also look
at NOAA's similar time history DATA of when
snow and ice accumulate
at the
poles in Mr. Pope's recent presentation to the Johnson Space Center Chapter of the NASA Alumni League.
Even just 100 million years ago, there were no continuous ice caps
at the
poles (just winter
snow): all the ice melted in the summer
at the
poles, and deciduous rain forests existed within 1,000 km of the
poles.
Earth also has a
snow cone machine
at the South
pole, but don't tell anyone.
For example, as the temperature increases, less
snow will be present
at the
poles.