| The closer to the poles of the Earth you go
|
| Or ascend heights, the temperature turns low
|
| Ten thousand years ago, the world was colder than it is today
|
| Britain immersed in snow
|
| Glaciation changed the face of the countryside
|
| To become more like the Earth we know
|
| Working slowly, giant hunks of ice
|
| Cut and slide then push aside tons of stone
|
| Signs say at the time of the ice age
|
| A third of the Earth’s surface totally snowed over
|
| Then the Fahrenheit rose, polar caps and ice flows
|
| Capsized, and shrank in size loads
|
| Today the only glaciers remain
|
| On high latitudes or low altitude terrain
|
| So though only a tenth of the globe’s glaciated
|
| There’s occassional formations close the the equator
|
| See the way that they’re made in this how-to guide
|
| Snowflakes accumulate in mountainsides
|
| The weight creates pressure
|
| Making a firm and dense substance that’s termed by the name of firn
|
| If the ice stays frozen as snow falls
|
| Then it snowballs, grows and grows more
|
| And as the mass increases
|
| Gradually gravity grabs massive pieces and releases them
|
| Woe betide anything in the way
|
| As they slowly slide lower and erode it away
|
| With an amazing grace
|
| Glaciers patiently changed the landscape on a grand scale
|
| Glaciers, how long will they stay here?
|
| Glaciers, how long will they stay here?
|
| Two major stages make up glacier formation
|
| And they’re named accumulation and ablation
|
| Accumulation happens in the winter, it gets bigger
|
| While ablation is the inverse
|
| It shrinks year to year every summer, then returns
|
| And that’s the basic annual changes that happen to a glacier
|
| But on a grander timescale
|
| The average size fails to remain the same
|
| And changes at a snail’s pace
|
| Now I don’t wanna get too technical
|
| So let me just explain the basics
|
| And then I’ll change the subject
|
| If you take away ablation from accumulation
|
| Then the data you remain with is the glacial budget
|
| If the figure’s bigger than zero, it’s advancing
|
| But if it’s less than, it’s a negative regime
|
| The level will decrease until everything retreats
|
| And all we’re left with is a petty little piece of what it used to be
|
| Experts agree that greenhouse gas such as CFCs
|
| Mean the atmosphere’s heat’s increasing
|
| Leading to deeper seas, the decline in ice
|
| Causing rising tides on shorelines worldwide
|
| Glaciers, how long will they stay here?
|
| Glaciers, how long will they stay here? |