Friday, November 14, 2008
Sea level has risen 3.3 mm a year since 1993
Monitoring changes to water levels in the sea, in rivers and lakes, in ice sheets and even under the ground, with the help of observations from satellites, has revealed that since the start of 1993, sea level has been rising by 3.3 mm a year, almost double the rate of the previous 50 years. Sea level rise in one of the major consequences of global warming, but it is much more difficult to model and predict than temperature. Since the 1990s, a number of altimeter satellites have been measuring the height of the ocean surface and this has dramatically improved our understanding of sea level rise. Currently, three altimeter satellites cover the entire globe every 10 to 35 days, and can measure the height of the sea surface to a precision of 1 to 2 cm. These measurements show that since the start of 1993, sea level has been rising by 3.3 mm a year, almost double the rate of the previous 50 years. “For several years now, the rate of rise has not changed significantly,” said Anny Cazenave, from the Laboratoire d’Etudes en Geophysique et Oceanographie Spatiale (LEGOS) in Toulouse. Cazenave’s team, and other groups, calculate that for 1993-2003, about half of the sea level rise was due to the oceans expanding as they became warmer, and the other half was due to shrinking land ice. Since 2003, ocean warming has had a temporary break but sea level has continued to rise. Now, about 80 percent of the annual sea level rise can be attributed to accelerated land ice loss from glaciers, Greenland and Antarctica. This has been revealed by a brand new satellite technique, called space gravimetry. The method has shown that the Greenland ice sheet is losing about 150 gigatonnes of ice each year, two thirds of which is large chunks of ice flowing rapidly into the sea. Using GRACE, Cazenave and others have also looked at changes in water storage in river basins. In the period from 2002-2006, they found that some basins, including the Congo and the Mississippi, have been losing water, but river systems in the boreal regions are gaining water. Meanwhile, scientists at the European Space Agency, collaborating with DeMontfort University in the UK, have begun to use data from the satellites that measure sea level, to assess lake and river levels on ల్యాండ్.
Wednesday, November 12, 2008
Anti Ageing Excercise
Finding the perfect anti aging exercise regimen is not only required in the strive to look younger, it is absolutely necessary in the quest to live a healthy, disease-free life. If you seriously step back and examine all the "things" that you've put through your body, both in the past, as a child, teenager and young adult...and in the present, as a full grown adult, I think you'll probably have a very thin argument saying anything other than that your body has been put through the ringer, big-time.
Lack of exercise and aging go hand in hand. If you are inactive, you will lose muscle tone and strength, your cardiovascular fitness will suffer, and you will find yourself less able to participate in sports or do other things you used to enjoy. Your posture will likely suffer as muscles deteriorate, and you will begin to suffer from back pain. Your blood pressure may start to rise. A sedentary lifestyle can result in myriad different physical problems. Even people who are quite young can seem prematurely old if they suffer from these effects of inactivity - from this perspective, any activity is anti aging exercise.
A sedentary lifestyle where your body stays in place and cramps up is also far from how your body was meant to perform. If it was so, then we would all be designed to look like a Jaba the Hut type figure!
Implementing a good anti aging diet and exercise lifestyle can not only prevent these common symptoms from occurring, but may even reverse these symptoms.
An anti aging regimen entails a multiple prong approach including lifestyle, diet, motivation, positive outlook, and actual physical exercise.
The best exercises to use are multi-muscle exercises such as squats. You can do these with your bodyweight only, or if you have a dumbell set at home, you can do these while holding dumbells in each hand. Do 3 sets of 8 repetitions two to three times per week. Add a pushing exercise, such as pushups or dumbell chest presses, and you have a fast, total body workout that builds muscle, burns fat, and boosts growth hormone.
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You definitely have to try it out to see for yourself.
Perhaps the efficiency of this exercise lies in the facts that it not only keeps your back supple, but the first position oxygenates and replenishes the brain, while the second position opens up several energy channels in the body and upon the necessary exhalation, clears out the lungs in a most efficient way.
Well, the monks have given the Hindu-Push ups their vote for Anti-aging, Bruce Lee gave them his vote for strength, perhaps when you try them, they’ll win one more advocate.
Anti-Aging Fruits and Vegetables
Fresh fruits and vegetables are natural anti-aging products. They are nutrient packed and provide most of the necessary nutrients required by your dull and dry skin to retain its radiance and firmness. They contain many of the essential vitamins and minerals that help maintain and repair the skin and cells.
Eat fresh fruits and vegetables as snacks, instead of over-processed manufactured "fast foods". Colorful fresh fruits and vegetables are some of your best sources of antioxidants.
Just as beta-carotene protects fruits and vegetables from sun damage, it can do the same for you. That's why the National Institutes of Health recommends eating nine daily servings of brightly colored fruits and vegetables – peaches, strawberries, broccoli, etc.
Lack of exercise and aging go hand in hand. If you are inactive, you will lose muscle tone and strength, your cardiovascular fitness will suffer, and you will find yourself less able to participate in sports or do other things you used to enjoy. Your posture will likely suffer as muscles deteriorate, and you will begin to suffer from back pain. Your blood pressure may start to rise. A sedentary lifestyle can result in myriad different physical problems. Even people who are quite young can seem prematurely old if they suffer from these effects of inactivity - from this perspective, any activity is anti aging exercise.
A sedentary lifestyle where your body stays in place and cramps up is also far from how your body was meant to perform. If it was so, then we would all be designed to look like a Jaba the Hut type figure!
Implementing a good anti aging diet and exercise lifestyle can not only prevent these common symptoms from occurring, but may even reverse these symptoms.
An anti aging regimen entails a multiple prong approach including lifestyle, diet, motivation, positive outlook, and actual physical exercise.
The best exercises to use are multi-muscle exercises such as squats. You can do these with your bodyweight only, or if you have a dumbell set at home, you can do these while holding dumbells in each hand. Do 3 sets of 8 repetitions two to three times per week. Add a pushing exercise, such as pushups or dumbell chest presses, and you have a fast, total body workout that builds muscle, burns fat, and boosts growth hormone.
window.google_render_ad();
You definitely have to try it out to see for yourself.
Perhaps the efficiency of this exercise lies in the facts that it not only keeps your back supple, but the first position oxygenates and replenishes the brain, while the second position opens up several energy channels in the body and upon the necessary exhalation, clears out the lungs in a most efficient way.
Well, the monks have given the Hindu-Push ups their vote for Anti-aging, Bruce Lee gave them his vote for strength, perhaps when you try them, they’ll win one more advocate.
Anti-Aging Fruits and Vegetables
Fresh fruits and vegetables are natural anti-aging products. They are nutrient packed and provide most of the necessary nutrients required by your dull and dry skin to retain its radiance and firmness. They contain many of the essential vitamins and minerals that help maintain and repair the skin and cells.
Eat fresh fruits and vegetables as snacks, instead of over-processed manufactured "fast foods". Colorful fresh fruits and vegetables are some of your best sources of antioxidants.
Just as beta-carotene protects fruits and vegetables from sun damage, it can do the same for you. That's why the National Institutes of Health recommends eating nine daily servings of brightly colored fruits and vegetables – peaches, strawberries, broccoli, etc.
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