Blog Detail
Olelog
http://my.opera.com/nielsol/blog/
Primarily blogging about earth sciences: natural hazards, plate tectonics, climate change and oceanography.
- Author: Ole Nielsen
- Listed in: Earth Science
- Tags: climate earthquakes geology plate tectonics oceanography
Recent Posts
Tuvalu - 1st Country to Drown
The Tuvalu island nation is slowly being inundated as the ocean rises, and some citizens have already fled, mainly to New Zealand, partly for economic and social reasons (e.g. employment and family reunions). Within 50 years the Tuvalu Islands (in th...
Lake Atitlán, Guatemala
Earth Observatory (NASA) often brings wonderful satellite images. Here is one showing “Harmful Bloom in Lake Atitlán, Guatemala”. Do read their accompanying text about the cyanobacteria or blue green algae. Here I’ll write a bit about the geol...
Chesapeake - Stop Pollution, and Make Fuel!
The Chesapeake Bay is heavily polluted, and a large portion of the bay is a so-called dead zone. The estuary is fed by 11 large rivers that contain run-off, which deplete the water of oxygen and are responsible for large algal blooms. Now the York Ri...
Dynamic Oceanic Crust Formation
Today it is generally acknowledged that plate tectonics are driven by gravity. The gravity-controlled sinking of a cold, dense, oceanic slab into a subduction zone (called "slab pull") is considered the main driving mechanism. The role of u...
Savage Islands - Never Heard of ?
Don’t worry too much if you have never heard of the Savage islands. The total land area of the Savage Islands is only 2.73 km2, according to Wikipedia, but it may be slightly more? The islands are surrounded by dangerous coral reefs, making access ...
World\'s 1st Osmotic Power Plant
Two years ago I mentioned that Statkraft in Norway had decided to build the world's first prototype osmotic power plant. Today this first osmotic power plant was finally opened. It produces emissions-free electricity by mixing fresh water and sea wat...
