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Japan Quake Caused Surprisingly Severe Soil Collapse

mark edward harris japan tsunami

Near coastlines, harbors and rivers, earthquakes can make the wet, sandy soil jiggle, turning it temporarily from a solid to a liquid state, a process known as liquefaction. Japan’s soil liquefaction occurred over hundreds of miles, surprising even experienced engineers who are accustomed to seeing disaster sites, including from the recent earthquakes in Chile and New Zealand.

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Asia Nuclear Reactors Face Tsunami Risk

Asia, the world’s most seismically charged region, is undergoing a nuclear renaissance as it struggles to harness enough power for its huge populations and booming economies. The skeleton of what will soon be one of the world’s biggest nuclear plants is slowly taking shape along China’s southeastern coast, right on the doorstep of Hong Kong’s bustling metropolis. Like Japan’s Dai-ichi plant they lie within a few hundred miles of the type of fault known to unleash the largest tsunami-spawning earthquakes.

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Bioengineering Uses Vetiver Grass to Save Coral Reefs Near Guam

The vetiver grass system is a unique, economical and effective bioengineering technology for protecting coral reefs. It is also expected that these vetiver hedges may even be able to protect the beach area against tidal surge once their root systems are well established.

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Adelaide Sinks Off Avoca Beach, Australia

News, Pollution
Apr
13

After a year of rolling legal action, the scuttling of HMAS Adelaide off Avoca Beach on the NSW central coast was allowed, and the decommissioned warship will become a scuba diving attraction by month’s end. Environmentalists fears lead paint on the Adelaide is a health risk and that the wreck will cause beach erosion and ruin the surf.

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New Rights Challenge to Belo Monte Dam in Brazil

A group of independent Brazilian scientists, who recently studied the environmental impact report, concluded that the project was not viable. The XingĂș river basin is home to four times more biodiversity that the whole of Europe.

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World’s Winds Getting Stronger, Creating Taller Ocean Waves

News
Apr
10

A first-of-its-kind analysis of this data could help coastal communities and ocean ships brace for windier waters, which push waves higher.

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Worried about a radioactive ocean? A reality check

The water dumping came after earlier leaks of radioactive water that had already raised concerns about its effects in the ocean, raising questions about health and safety.

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Turkish Nuclear Plans on Mediterranean Coast Raise Great Concerns

Turkey plans to build a coastal nuclear power plant close to an earthquake-prone area, triggering neighboring countries’ fears that Japan’s nuclear disaster shows that the new plant could be a risk to the whole Mediterranean region.

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Earth’s Gravity Revealed in Unprecedented Detail

After just two years in orbit, ESA’s GOCE satellite, a European spacecraft that skims the upper reaches of the atmosphere, has gathered enough data to map Earth’s gravity with unrivalled precision, from deep ocean trenches to majestic mountain ranges. The data will be crucial for understanding sea level changes, shifts in ice flows and how ocean currents, which are driven by gravity, respond as the planet warms over the next few decades.

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