Archive for April, 2007

Egypt Asks for Loans of Artifacts Held Abroad

Publication: National Geographic News   Date: April 30, 2007   View Article

Egypt will request temporary loans of some of its most cherished artifacts currently on display at museums abroad, antiquities officials announced on Sunday.

The requested items include the famous bust of Nefertiti currently at the Altes Museum in Berlin, Germany, and the Rosetta Stone at the British Museum in London.

Koala Groups Face Extinction Due to Changing Forests

Publication: National Geographic News   Date: April 27, 2007   View Article

Australia’s iconic koalas face an uncertain future as their fragmented habitats shift in response to climate change, fire, and drought, an ecologist said.

For example, St. Bees Island off the coast of Queensland is changing from “a koala-friendly forest to a koala-unfriendly forest,” said Alistair Melzer, an ecologist at Central Queensland University.

Volcanic Activity Triggered Deadly Prehistoric Warming

Publication: National Geographic News   Date: April 26, 2007   View Article

The prehistoric bout of volcanic activity that slowly ripped Greenland from Europe triggered a deadly global warming event, a new study says.

The event, which happened about 55 million years ago, has similarities to today’s climate changes, which have been linked to human generation of greenhouse gases from fossil fuels.

Fish Growing Faster in Warming Waters

Publication: National Geographic News   Date: April 23, 2007   View Article

Fish are fattening up faster near the Pacific’s surface, which is warming, while species in the deep sea are growing more slowly as that water cools, a new study says.

The shallow-living fish are growing 20 to 30 percent faster today than they were 50 years ago, according to the researchers’ analysis of fish ear bones.

Ocean Debris: Habitat for Some, Havoc for Environment, Experts Say

Publication: National Geographic News   Date: April 23, 2007   View Article

Look under a chunk of plastic afloat in the ocean and you’re likely to spot a fish or two. But look inside the stomach of a dead albatross or sea turtle and you’re likely to find chunks of plastic.

So goes the paradoxical legacy of plastic debris in the ocean.

Newfound Fossils Reveal Secrets of World’s Oldest Forest

Publication: National Geographic News   Date: April 18, 2007   View Article

The world’s earliest forest may have been filled with slender trees that were three stories tall and capped with branches that resembled bottlebrushes.

That’s the picture painted by two newfound fossils that are providing unprecedented insight into the appearance and ecology of the first known forest, according to a new study.

Distant Planets Could Have Plants of “Alien” Colors

Publication: National Geographic News   Date: April 12, 2007   View Article

Scientists may be able to determine the color of extraterrestrial plant life while studying distant planets, according to a pair of new studies.

Researchers have developed a way to analyze the light emitted by a given planet’s parent star and determine how that light interacts with various chemicals in the planet’s atmosphere.

© 2008-2010 Collected Writings By John Roach