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BOULDER, Colo., March 28 () -- An ancient asteroid impact may have caused a global firestorm on Earth that burned every twig, bush and tree on the planet, U.S. researchers say.An asteroid the size of Manhattan that slammed into a region of Mexico in the dinosaur era could have triggered a worldwide firestorm that led to the extinction of 80 percent of all Earth's species, a University of Colorado Boulder study suggests.Computer models show the collision would have vaporized huge amounts of rock and then blown the material high above the atmosphere.The re-entering ejected material would have heated the upper atmosphere enough to glow red for several hours at roughly 2,[url=http://www.apollo13show.com/]michael kors handbags outlet[/url],700 degrees Fahrenheit, possibly killing every living thing not sheltered underground or underwater, the researchers said.The researchers say they detected excess charcoal or soot in sediments dating from the Cretaceous-Paleogene boundary of around 66 million years ago when the asteroid struck.Some researchers have suggested that layer of soot was created by the impact itself, but Robertson and his colleagues say the amount of soot was too high to have been created during the massive impact event and was consistent with the amount that would be expected from global fires."Our data show the conditions back then are consistent with widespread fires across the planet," researcher Douglas Robertson said. "Those conditions resulted in 100 percent extinction rates for about 80 percent of all life on Earth."

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Red Wine - A Classic Taste For Any TimeArticle Summary: When it comes to buying red wine there are lots of different varieties on the market to choose from. This article gives you a quick overview of the main types of grapes used in red wine production. Hopefully it will help you when you come to buy your next bottle!
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When it comes to red wine, it can [link widoczny dla zalogowanych] get confusing [link widoczny dla zalogowanych] as to which kind of wine is right for you. There is such a wide variety of grape types that go into wine production that you can find yourself bewildered when faced [link widoczny dla zalogowanych] with a supermarket shelf.
To optimize the experience, red wines need time to age, then a minute of time to breathe once opened before serving. They do not need to be chilled, and they go well with strong flavours and dark meats.
In this article, different varieties of red wine grapes are detailed, giving you as chance to experiment with flavours whilst allowing you to get to know some of the products that are available.
On the whole, there are six classic red grape varieties that make up the majority of wines that are available for purchase. There of course others, but this is just [link widoczny dla zalogowanych] an overview of the most common varieties available:
Cabernet Sauvignon
Cabernet Sauvignon is traditionally associated with Bordeaux but is now grown all over the New World and Europe. It has a black current like taste, which is created from small grapes who have thick skins. Cabernet Sauvignon is probably one of the most established types of red wine and it covers the world, ranging from Eastern European (often tight budget) [link widoczny dla zalogowanych] speciality wines, through Chilean and Australian varieties, through to the prestigious and historic red wines of Bordeaux that [link widoczny dla zalogowanych] have been matured to produce smoother, generally more expensive wines.

Merlot
Merlot is also traditionally associated with the Bordeaux region of France. It hasn't spread across the world in the same way as the Cabernet Sauvignon due to its more specific soil condition requirements. But it has found a happy new home in the valleys of Northern California. A rich, juicy wine, it has tastes resembling fruitcake and black currant.
Pinot Noir
Pinot Noir is associated with Burgundy region wineries, and until recently was [link widoczny dla zalogowanych] not produced with particular success anywhere else. However New Zealand is now producing some very fine Pinot Noir wine. The wines produced by this grape are at first summery [link widoczny dla zalogowanych] in their taste. They remind you of summer fruits. [link widoczny dla zalogowanych] After five to ten years of maturing, however, this taste changes to become much richer, and deservedly more [link widoczny dla zalogowanych] expensive.
Shiraz or Syrah
What the French call Syrah, is known by Australians as Shiraz. It is traditionally grown in the Rhone Valley, but has become popular right across [link widoczny dla zalogowanych] the New World. There are great varieties of this distinct wine [link widoczny dla zalogowanych] many as [link widoczny dla zalogowanych] a really tasty pour from the jug wine. It may not be a fruity wine, but it is a great partner for all types of food, it has a taste of black cherries but this is often not that obvious. It is starting to become better [link widoczny dla zalogowanych] known, and is certainly one to look out for as the New World starts to get more interested in and good at growing Sangiovese grapes.
Nebbiolo
Nebbiolo is another of Northern Italy's classic grapes which, despite being responsible for some [link widoczny dla zalogowanych] of Italy's finest wines, has not been made the jump into the New World. It's spiritual home is Barolo, and it would seem ideally suited to planting in warmer climes. The taste is of black cherries and sometimes even chocolate making it a rich wine.
There are many more types of grape and particular blends of complementary grapes that go into making red wines - but [link widoczny dla zalogowanych] this should give you an overview to start your sampling with - for more information on red wines, go to laithwaites(dot)co(dot)uk
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Fiona Muller has been writing for over 20 years. She is a qualified journalist and has worked in food and drink writing for the [link widoczny dla zalogowanych] last few years. For more informationVisit - [link widoczny dla zalogowanych]

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