Sentences with phrase «melt at the poles»

Has the melting at the poles been more or less right on par with most predictions?

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...

The strongest evidence in support of climate change is the melting of the polar ice caps, Langcake acknowledges, noting the temperature in Antarctica rose by 2.5 degrees centigrade between 1945 and 1995 and a Norwegian study supporting the idea of a rapidly accelerating melt at both poles, but claims this theory may not be borne out over a longer period.

Not exact matches

Last week, Thompson's colleagues measured the ice levels at survey poles that they had inserted last year; more than a meter of ice had melted in 12 months, out of a total thickness of 20 to 50 meters.

The poles are on the front lines of climate change — melting ice, thawing permafrost, warming temperatures — but they are also at the forefront of weather patterns, global oceanic circulation and the marine food chain.

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.

Sea levels have also risen due to melting glaciers and ice sheets at the poles.

Melting ice at the planet's poles is one reason why.

There just isn't much ice left, and what is left would be extremely difficult to melt, as most of it is located at high latitudes around the poles which are mostly dark 6 months out of the year with way below freezing temperatures.

One other factor here is increased evaporation at the equator which has increased the salanity of tropical waters along with increased percipitation at the poles seems to be making the thermohaline system move faster which in turn carries move heat to the poles and hence increases polar ice melting and hence possibly a greater chance of slowdown of the thermohaline system.

I will say this again, and would like it if a site owner would respond to this point: The poles started melting when we were at roughly 315 ppm, which if we consider climate lag times, equals melting beginning at 300 ppm.

Note I am not including Hansen as a serious source of science in this, as he predicted that both poles would be melting at once.

With no sunlight in the winter, and with the sun at a low angle in the sky in the summer, it is always going to be cold at the poles and any melting in the summer is going to freeze back in the winter;

That's melting the ice at both poles, increasing sea levels.

[2] The future toward which we now rush is unbelievable, even though the evidence of retreating glaciers, massive ice break - ups at both poles, and a melting permafrost is before our eyes.

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.

They look at two dimensional maps like this one from September 1 last year, and imagine that the ice is going to keep melting back towards the pole.

When polar ice melts the earth changes shape: mass (ice) which was concentrated at the poles, with a short arm of inertia, is spread evenly around the ocean surface, averaging something like 63 degrees latitude.

130,000 years ago temperatures near the poles were higher than today, forests growing up to the Arctic Ocean, all permafrost melted, ice free North Pole at least in summer.

In April 2012, Minchin ridiculed the notion that human - caused climate change was a risk, writing in a column that «despite the hype» the ice at the world's poles was not melting and that «our cities aren't being submerged.»

Armour says this is most likely due to feedback mechanisms that have yet to take off fully, such as the increased absorption of sunlight at the poles as reflective ice sheets and sea ice melt away.

It seems reasonable to me that some of this data may not exist since the ice was melting or sublimating because of high temperatures at the poles.

The accelerating pace of ice shelf melting can be attributed to global warming, which is increasing faster at the planet's poles than anywhere else, the researchers pointed out.

Land and sea based ice at both poles have melted, and have contributed to global sea level rise.

The melting ice would cool ocean surfaces at the poles even more.

So melting the ice at the poles would only move mass vertically, or pretty much vertically, in relation to the axis and would have little effect on the rotational speed.

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.

So there is less energy and less time to melt ice at the pole.

Eventually, we will get to a state where there is enough heat absorbed during the summer, even at the shorter summer near the pole, to completely melt the sea ice.

Since seasonal ice is thinner than multiyear ice (i.e., ice that has survived at least one melt season) and vulnerable to melting completely, there was a possibility that the ice edge could recede beyond the pole and leaving the pole completely ice - free.

because I never came across a case where sky drivers vanished in the thin air and green house effect seems to be a reality with changing weather patterns and melting of ice at the poles.

Craig, You are describing the overturning meridional circulation which as far as I know is mostly driven by diluted salinity sinking at the north pole after mixing wit fresh melt water.

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.

You're seeing enormous melting of glaciers, especially up at the poles.

While average temperatures have increased by about 1C, the warming at the pole — closer to 3C — is melting the ice mass.

For their study, Hansen and his colleagues combined ancient paleo - climate data with new satellite readings and an improved model of the climate system to demonstrate that ice sheets can melt at a «non-linear» rate: rather than an incremental melting as Earth's poles inexorably warm, ice sheets might melt at exponential rates, shedding dangerous amounts of mass in a matter of decades, not millennia.

In this warming world there is no reason to believe that ice over land must decrease if ice in water at the other pole melts.

«Consequently, we should expect not the catastrophic melting of ice, but, on the contrary, the gradual growth of ice caps at the poles.

But at the «third pole», in the Himalayas, the ice is melting as evidenced by dozens of swelling milky blue lakes that threaten to burst down on to villages when their ice dams melt.»

There is an edited 15 minute 16 mm colour film recording taken by crew members that shows the conditions over parts of the time the vessel was on the surface at the pole in 1959, including activities to melt the ice on and about the submarine and showing part of the Wilkins service.

Depending on how the continents are arranged the global ocean conveyor belt changes and having a land mass over a pole blocks warm water from getting at the ice to melt it.

If we had a continent over both poles at the same time we'd probably get a snowball earth episode that would last until either CO2 built up in the atmosphere to melt it or the continents drifted off the poles or some combination of both.

A wooden pole that had been driven into the ice the year before now stands exposed as the Aletsch glacier melts and sinks at a rate of about 10 - 13 meters per year near Bettmeralp, Switzerland.

And true, models predict greater T rise (if not greater max T) at the poles than at the tropics, and supposedly this is happening, even if not at Baffin Island, where (again) unprecedented melting is supposedly occuring without T rise or amplification.

«Some folks who pooh - pooh global warming might wake up if shown that even the pole is beginning to melt at least sometimes, as in the Eocene,» Dr. McKenna said.

Melting ice that sits above sea level nearer the poles ends up adding more more mass nearer the equator as the now liquid water distributes itself across the globe at sea level.