Overfishing is a growing problem that could mean no more fish
for us. Would closing the ocean for a few years stop this trend? Trace
discusses one idea.
Wednesday, April 16, 2014
The Cherry Blossoms of Tokyo
The Sustainability Treehouse Reminds Us What's Worth Protecting
You can find out more about the great educational facility (and see more pictures of the striking property) over at Homes and Hues: The Sustainability Treehouse Educates While It Excites
Constantine
Algeria's City Of Bridges
Amazon drought, fire lead to sharp increases in tree mortality
Chinese Pollution Changing North American Weather
The brutal weather in the U.S. Midwest this winter has, in
part, coal-burning power plants in China, a new study finds.
Arctic Ozone Hole Looking Good
A global ban on the chemicals that caused the Antarctic ozone hole was successful in staving off one in the Arctic.
Search for lost plane shows our Oceans are full of crap
Before Malaysia Airlines Flight 370 went missing, sea trash was not a global headliner.But as hundreds of objects sighted off the Australian coast as possible aircraft debris turn out to be discarded fishing equipment, cargo container parts, or plastic shopping bags, a new narrative is emerging in the hunt for the missing plane: There’s more garbage out there than you think. Most of it is plastic.
Arctic Sea Ice Peak Is 5th Lowest on Record
Study: Arctic Getting Darker, Making Earth Warmer
Despite a
late-season boost from the cold weather patterns similar to those that
blasted England with terrific storms in February, Arctic sea ice is
still on a long-term decline, according to the National Snow and Ice
Data Center.
The Arctic ice cap
expands every winter and shrinks every summer, in response to changing
temperatures, sunlight and weather conditions. The sea ice hit its
annual peak on March 21, covering 5.76 million square miles (14.91
million square kilometers), the NSIDC reported last week. That's the
fifth-lowest maximum extent since satellite record keeping started in
1979.
But until mid-March, researchers monitoring the icy blanket's annual growth thought the sea ice would be even smaller this year.
This
winter, the Arctic ice cover was hovering significantly below long-term
averages through the beginning of March, the NSIDC said. But ice pack
surged toward the Barents Sea north of Norway and the Bering Sea between
Alaska and Russia in mid-March, driven by strong winds. The surface
winds were kicked up by an low-pressure weather system in the eastern
Arctic and North Atlantic associated with a positive phase of the Arctic
Oscillation, the NSIDC said. The Arctic Oscillation is an atmospheric
circulation pattern over the northern polar region that affects the jet
stream. It causes stormy conditions over the North Atlantic when it is
in a positive, low-pressure phase. [Video: Arctic Sea-Ice Continues To Thin]
In
the past decade, the Arctic ice-cap extent has bobbed back and forth
among top 10 record lows, all the while continuing an overall steady
decline that started in the 1970s. Since 1978, the winter Arctic ice cap has shrunk
by 12 percent per decade, the NSIDC said in a statement. The lowest
winter maximum on record occurred in 2011, when the sea ice extended
5.65 million square miles (14.63 million square km).
On
the other hand, the proportion of so-called multiyear ice was higher
this year than in 2013: About 43 percent of this year's ice was more
than a year old, compared to only 30 percent last winter. Still, much of
that multiyear ice is only two years old, left over from the relatively
cool 2013 Arctic summer melt season. Only 7 percent of the multiyear
ice is older than 5 years, half of the amount present in February 2007.
California 'Big One' May Not Be So Big After All
New simulations show up to 70 percent less ground shaking in a
major Southern California earthquake than previously thought.
Where do tectonic plates come from?
Well, kids, you see, when one chunk of Earth's crust loves another
very much, they slam together and one chunk is forced underneath of the
other. A new study suggests that this process of subduction is sufficient to explain the formation of the tectonic plates we know today.
The geology of Westeros
This Stanford project imagines 500 million years of planetary evolution on the planet of Game of Thrones, using a combination of book details and the principles of Earth-based geologic physics. Also dragons and White Walkers.
Geologic Wonder
In a new image taken from orbit, the Grand Canyon is visible slicing through the Kaibab Plateau.
Realgar
Specimen from Heritage Auctions.
Its name comes from the Arabic rahj al-ġār (رهج الغار, "powder of the mine"), via Catalan and Medieval Latin, and its earliest record in English is in the 1390s...
Realgar, orpiment, and arsenopyrite provide nearly all the world's supply of arsenic as a byproduct of smelting concentrates derived from these ores...
Realgar is poisonous. The ancient Greeks, who called it "sandaracha", knew that it was poisonous. It was used to poison rats in medieval Spain and in 16th century England.
Coming Tomorrow
Coming Tomorrow
- Hitler Married A Jew
- A woman living in the 1930s
- The untold story of the first woman to fly around the world
- A Red Jolly Roger
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