|
|
|
|
 | |  |
| A long time ago about 30,000 years to be exact... all of these waters and oceans use to be covered by ice sheets. Therefore, it use to be a little chilly. | |
 | |  |
|
 |
|
|
|
|
|
|
| | |
| This was because our friend Mr. Ozone layer didn't use to let the warmth from the sun through. But, he burning of fossil fuels doesn't make i any cooler either.. | |
| | |
|
|
|
|
|
|
|
|
 |
| | |
| The change in our atmosphere can be to blame for our rising sea levels. Because the temperatures are increasing, the ice glaciers have melted into the ocean. Also, the heat expands the water. | |
| | |
|
|
|
