The previous few million years of Earth 's climate has existed controlled by the ice age phases. The ice age phases consisted of extended cold temperature periods with glaciers where massive ice sheets grew on the mainland masses on and around the poles. Because of the ocean water evaporating, the water was being sealed up onto the land as ice. This ice sheet build up has drastically lowered worldwide sea level. Throughout the shorter, hotter, breaks called interglacials, the ice sheets have degenerated, and with the water from the glaciers melting and draining back into the oceans, the sea level has increased. Since the coldest part of the last ice age that happened about twenty thousand years ago, to now in the present day, worldwide sea
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The present interglacial is the orbitals driven and warming up eventually, and then coming to an end after the Holocene Climatic Optimum. About four to five thousand years ago all of the susceptible land based ice had disintegrated. The capacity of the worldwide ocean was stationary until the arrival of the Industrial Revolution, and by the nineteenth century, global sea level had begun to rise again. If this keeps happening like the way it has been for a few years, then the waters will soon take over the entire planet Earth. No matter what happens in the next few years the sea levels will continue to rise or even fall and that will create major problems for all human beings down the road. Even though the Earth had these short period spurts, and also these slowed down spurts, worldwide, the average sea level had experienced long-term acceleration up to the present day. (Painting, 2012). The two main reasons for the global sea-level rise over time is the thermal expansion produced by the warming of the oceans. Because the water expands as it warms, the loss of land-based ice such as glaciers has increased the melting processes creating a significant rise in the oceans all around the world. The more that the sea levels rise, the more chance the major coastal cities like Venice, Italy
The present interglacial is the orbitals driven and warming up eventually, and then coming to an end after the Holocene Climatic Optimum. About four to five thousand years ago all of the susceptible land based ice had disintegrated. The capacity of the worldwide ocean was stationary until the arrival of the Industrial Revolution, and by the nineteenth century, global sea level had begun to rise again. If this keeps happening like the way it has been for a few years, then the waters will soon take over the entire planet Earth. No matter what happens in the next few years the sea levels will continue to rise or even fall and that will create major problems for all human beings down the road. Even though the Earth had these short period spurts, and also these slowed down spurts, worldwide, the average sea level had experienced long-term acceleration up to the present day. (Painting, 2012). The two main reasons for the global sea-level rise over time is the thermal expansion produced by the warming of the oceans. Because the water expands as it warms, the loss of land-based ice such as glaciers has increased the melting processes creating a significant rise in the oceans all around the world. The more that the sea levels rise, the more chance the major coastal cities like Venice, Italy