Mariana Trench is just off the coast of the Philippines
James Cameron Descends 7 Miles Into Pacific Ocean’s ‘Desolate’ Mariana Trench
Category: Ocean
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“Melting Ice, Rising Seas”
Sea level rise is an indicator that our planet is warming. Much of the world’s population lives on or near the coast, and rising seas are something worth watching. Sea level can rise for two reasons, both linked to a warming planet.
NASA-funded researchers have created the first complete map of the speed and direction of ice flow in Antarctica. The map, which shows glaciers flowing thousands of miles from the continent’s deep interior to its coast, will be critical for tracking future sea-level increases from climate change. The team created the map using integrated radar observations from a consortium of international satellites.
Watch the ice flows in fantastic detail from Space
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Arctic Ice Completely Gone by 2020?
Questions Dan Miller
Considering all of these influences, the Intergovernmental Panel on Climate Change (IPCC) estimates that the global average sea level will rise by 7.2 to 23.6 inches (18-59 cm or 0.18- 0.59m) by 2100 (see Figure 1) relative to 1980-1999 under a range of scenarios.
Note that these estimates assume that ice flow from Greenland and Antarctica will continue at the same rates as observed from 1993-2003. The IPCC cautions that these rates could increase or decrease in the future. For example, if ice flow were to increase linearly, in step with global average temperature, the upper range of projected sea level rise by the year 2100 would be 19.2 to 31.6 inches (48-79 cm or 0.48-0.79 m). But current understanding of ice sheet dynamics is too limited to estimate such changes or to provide an upper limit to the amount by which sea level is likely to rise over this century.
You Ask Were is the Water Coming from? See More:
As the Melt Flows Into the Oceans Water Levels Rise Onto Our Cities.
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Fifty miles off the shores of Cuba lies one of the world’s healthiest coral reefs, an underwater Eden full of rare and endangered species. Anderson Cooper and “60 Minutes” cameras take viewers on an underwater adventure to this colorful world that could disappear someday if mankind isn’t more careful. Cooper’s story about “The Gardens of the Queen” reef was broadcast on “60 Minutes” on Sunday, Dec. 18, 2011 [Via: repeatingislands.com]
SOME STATISTICS:
[Via: destination-scuba.com]
SEE ANDERSON COOPER’S 60 MINUTE PRESENTATION: THE GARDENS OF THE QUEEN
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Richard Branson unveiled plans Tuesday to pilot a “flying” mini-submarine down to the furthest depths of the oceans, in his latest record-breaking adventure.
It has been built to withstand the extreme pressure found 36,000 feet below the surface, which is 1,500 times the pressure exerted on an aeroplane. The eight-foot long craft, made of carbon fibre and titanium, has stubby wings and a cockpit. It can cruise for about 6.2 miles and can stay submerged without help for 24 hours.
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