Alhamdulillah..

Rabu, 25 April 2012

Effects of Global Warming


DANGEROUS !!
 
The planet is warming, from North Pole to South Pole, and everywhere in between. Globally, the mercury is already up more than 1 degree Fahrenheit (0.8 degree Celsius), and even more in sensitive polar regions. And the effects of rising temperatures aren’t waiting for some far-flung future. They’re happening right now. Signs are appearing all over, and some of them are surprising. The heat is not only melting glaciers and sea ice, it’s also shifting precipitation patterns and setting animals on the move.

Some impacts from increasing temperatures are already happening.

Ice is melting worldwide, especially at the Earth’s poles. This includes mountain glaciers, ice sheets covering West Antarctica and Greenland, and Arctic sea ice.

Researcher Bill Fraser has tracked the decline of the Adélie penguins on Antarctica, where their numbers have fallen from 32,000 breeding pairs to 11,000 in 30 years.

Sea level rise became faster over the last century.

Some butterflies, foxes, and alpine plants have moved farther north or to higher, cooler areas.

Precipitation (rain and snowfall) has increased across the globe, on average.

Spruce bark beetles have boomed in Alaska thanks to 20 years of warm summers. The insects have chewed up 4 million acres of spruce trees.




Other effects could happen later this century, if warming continues.

Sea levels are expected to rise between 7 and 23 inches (18 and 59 centimeters) by the end of the century, and continued melting at the poles could add between 4 and 8 inches (10 to 20 centimeters).

Hurricanes and other storms are likely to become stronger.

Species that depend on one another may become out of sync. For example, plants could bloom earlier than their pollinating insects become active.

Floods and droughts will become more common. Rainfall in Ethiopia, where droughts are already common, could decline by 10 percent over the next 50 years.

Less fresh water will be available. If the Quelccaya ice cap in Peru continues to melt at its current rate, it will be gone by 2100, leaving thousands of people who rely on it for drinking water and electricity without a source of either.

Some diseases will spread, such as malaria carried by mosquitoes.

Ecosystems will change—some species will move farther north or become more successful; others won’t be able to move and could become extinct. Wildlife research scientist Martyn Obbard has found that since the mid-1980s, with less ice on which to live and fish for food, polar bears have gotten considerably skinnier. Polar bear biologist Ian Stirling has found a similar pattern in Hudson Bay. He fears that if sea ice disappears, the polar bears will as well.

source :  http://environment.nationalgeographic.com/environment/global-warming/gw-effects/

COMMENT :

This is very dangerous and must be stopped. according to my opinion, there are some easy ways to prevent global warming
Saving earth is everyone's responsibility. The damages done to the earth resources have to be slowed-down and eventually stop if we want our children and grand-children to enjoy a healthy outdoor life like we can.
The big polluters have been pointed and rules and regulations to diminish the toxic gas emissions have been put into place. Manufacturers are now targeted to ensure they lower their pollution production.
Although this is a small step in the right direction, more needs to be done to slow down and eventually stop the wastes of our natural resources. Such solutions as walking instead of taking the car for small travels are a good and healthy start. Other measures such as not letting the purified water run aimlessly or better isolation of a house to lower the fuel consumption to heat it are all small steps that have the power to make a difference in the long run.
Other measures such as only washing the dishes or the laundry for full loads can on the long run greatly reduce the exploitation of earth's resources.
Saving the earth can also be done in your own backyard. Hence, when mowing the lawn, it has been proven that by leaving the cut grass, you are saving a lot on fertilizers and you have greatly diminishing the quantity of waist you are producing. The other great benefit from not picking-up the cut grass is the time saving you can enjoy. Cut grass when left in place has the power to give back to the earth powerful and natural nutrients and a good load of natural water.
It is a little tip from me, may be useful :)

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