How high is the sea leavel,and were did all the water come from.In the last 100 years?

Question

Water /never goes away / we have more now ??

How much water ,from point (A) 2007 point (B) 1907-- in feet or ???

Answer 1

Sea level is considered to be approximately zero isn't it? That's what we base the altitude scale on. If a place is 2,000 feet above sea level, then sea level is the established point for zero. It's interesting to note that water (as in the sea) seeks its own level. In fact, water is nature's perfect level. Establishing it as a zero point is a good idea, since it's rougly at the same altitude--at its edges anyway.

All the extra water you asked about comes from the usual places. It's frozen in storage at the polar ice caps. It's also stored in animals and plants. There are two major problems contributing to more water. Ice caps are melting because the planet is warming up, and salt or salinity in the ocean is decreasing. Salt in water affects its characteristics, like boiling points, weight, saturation and so on.

What if you put two identical pots of water on the stove, one with salt and one without? Would each start boiling at the same time? If my assertion that salt would delay its boiling point to a higher temperature is true, then salt changes water's reactions. It's then safe to assume that water in the ocean would change too. Would less salt help it evaporate more quickly? I think so. More evaporation means more rains over land, more flooding.

Have you read in the news about more flooding than usual lately?

Answer 2

If the water is frozen on land, rather than floating on water, then it does not contribute to sea water level. During Ice Age, glaciers hundreds of feet thick lowered sea level. During warming now in progress, melting glaciers are raising sea level.

Answer 3

how high? idon really know.
were did the water come from? it came from melted ice from the 2 poles especailly the north cuz it's less stabled than the south pole.
fro more information check out google

Answer 4

no dummy, the ice melts.
does it click?