Was a large part of the globe once covered by glacial ice?

Question

At one time it probably was not. If it returns to the no ice stage why should there a problem?

Answer 1

yes it was... its called the ice age. If this ever happens again, most of the human population will die out

Answer 2

Hi, hope this helps:

For the majority of the time in ‘known’ history the earth has been glacier free, but here have been a number of early glacial periods or ‘ice ages’ that have occurred. These were 250 million, 600 million and 2 billion years ago.

The latest glacial period began approximately 2 – 3 million years ago, and for the last 2 to 3 Million years the earth has been in a constant state of ‘ice age’. Extreme decreases in temperature have been discovered in earths history causing major alterations of the earths surface.

This has been broken by warmer interglacial periods, that occur about every 100,000 years. This change of climate usually lasts for 10,000 to 20,000 years. We are in an interglacial period at present which began about 12,000 years ago. So the precedent is there to assume their could be another ice age in about 8,000 years

Streams and rivers would be forced to follow different routes as they become wider due to glacial melt. Sea levels would change - because glacial snow is formed from sea water during ice ages, sea levels were up to 330 ft lower that today. If the remaining ice and snow were to melt then the sea levels would be considerably higher and a great deal of land and resources would be under sea level altering the whole ecosystem on the planet. The melting would possibly cause tidal waves, flooding and other natural disasters too.

Answer 3

Yes, there was a time where ice covered most of the northern hemisphere.

Why would that be a problem that it gets hotter still?
Because now there are people and cities established on coastlines, and those will get flooded. I guess moving megalopolis like New York or Los Angeles would cost more than just a pretty penny and some are not too eager to spend that much already.

Answer 4

The earth has gone through many cycles of warming and cooling. For some reason the lunatic fringe think that the planet should remain exactly the same which is entirely contrary to how nature works. It is ridiculous to expect that the sea levels will stay the same forever, or that the climate will remain constant and unchanging. The earth has been much warmer than it is today and it has also been much colder. Whether the current miniscule warming trend is natural or man induced is irrelevant, it all just part of the natural order of things. Termites actually contribute more to global warming than the sum total of all of man's activities.

Answer 5

Catholicism got here first. The word 'Catholic' potential 'time-honored', 'alongside with all Christians or all of Western Church'. Catholics have been the 1st Christians. Roman Catholic Church (in Vatican) is the 1st stable Christian Church. Catholicism got here from Judaism and with the help of advert 394 Christianity grew to become the stable faith of the Roman empire. it rather is after the Reformation throughout the time of the sixteen th century that Roman Catholicism split and had 2 different branches - Protestantism and Orthodoxy . Roman Catholicism, Protestanism and Orthodoxy are the three considerable branches or denominations of Christianity. those 3 considerable branches and a few 'different' Christians are mutually regularly occurring as Christianity. So while you're a Catholic which potential you're a Christian. once you introduce your self it rather is way less complicated for others to appreciate and extra gentle for you once you assert ' i'm a Christian' or 'i'm a Christian - Catholic' than 'i'm a Catholic'.

Answer 6

Yes. Glciation has happened on more than one occasion. It appears to be a regular occurrance going back millions of years.

The last "ice age" finished about 10,000 years ago. At the peak of that one, ice covered land now occupied by London and New York.

Answer 7

There is a problem with rapid changes that it seems man's activities may cause. There is the potential also to cause changes that will put the earth outwith normal fluctuations and even more catastrophic results. The possibilities may be remote but do we really want to take the chance of earth ending up like Venus?

Answer 8

Because the human population of the earth has grown so much that LOTS of people would die if the ice took back a bunch of land that was being lived on and used to grow food...

Answer 9

It used to cover around 30%.

It's a problem because a lot of large cities are on the coast. So a few meters will make a lot of difference.

But it's also the change and the speed in which it's happening. it's going to make some interesting weather reports over the next few decades......

Answer 10

How do you think the Great lakes were formed..there are glacial rocks the size of pickup trucks just strewn about