Global Warming Facts

Global warming is caused by green house gases, which trap in the sun’s infrared rays in the earth’s atmosphere, which in turn heat up the earth’s atmosphere. These green house effect warming is called as global warming. The effects of green house effect are visible more prominently in the recent years, with number of natural calamities on the rise in the whole world.

The global warming has happened in the past few years and is evident from the rise in mean temperature of the earth’s atmosphere. The main causes for the global warming are attributed to release of green house gases by human activities. The main gases contributing to green house effect are carbon dioxide, water vapor, methane and nitrous oxide. The largest producers of these gases are the thermal power plants, which burn the fossil fuels and produce these gases in large quantities. The second biggest sources of these green house gases are the road vehicles and industries.
The global warming has led to increase in mean earth surface temperature and thus melting of polar ice. There are frequent melt down of glaciers that result in floods and other natural calamities. The melting of ice at the poles had led the mean sea level. And further increase in temperature may further melt the ice and lead to further increase in mean sea level, which will engulf low lying countries.


The effect of global warming is very evident on the animal kingdom also. Some animals have become extinct due to loss of their natural habitat or their inability to evolve to the rapid changes in the climate. Also there is a change in their life style because of the changes in the seasons. The migrating birds have changed their time of travel and also their place of migration.

The effect of global warming can be felt on seasons too. There is shift in season cycle, as the summers are getting longer than the winters. This has affected the animals and made them to change their lifestyle accordingly, and those who failed to do so have perished or on the verge of extinction.

The global warming is also responsible for the introduction of some new diseases. The bacteria are more effective and multiply much faster in warmer temperatures compared to cold temperatures. The increase in temperature has led to increase in the microbes that cause diseases.

Global warming is also effecting the crop production, as the crops are getting destroyed by the sudden change in temperatures or sudden on set of rains. Also the flash floods and other natural calamities affect the crop.

As a matter of fact, because of global warming, the earth’s atmosphere is getting more unpredictable with heavy rains in the areas, which have scanty rainfall or drought in the areas, which received good annual rainfall. The months of rainfall has also getting affected.

But there are some people on the other side of the wall also, they believe that the global warming is a natural process and cannot disturb our ecosystem. The earth’s surface mean temperature was even higher a long time ago, and the ecosystem has evolved from that temperature to this. So it can evolve further. But the changes that are happening now are rather fast compared to earlier times.
For more information visit -www.globalwarming.org.in

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Wind power

Wind power is so easy to produce from simple wind power stations. These wind power stations can be homely ones, which you can install on your private roof to try to catch some wind. The other side of the wind power stations kinds, are the massive ones you can see on the open fields of many countries around the world, each wind turbine like that reaches to the height of 100m!

For home use, you will need simple wind turbine, connected to wind power station, to produce home use power. The location of the wind turbine, the highest to locate it, the correct direction it to and the right size of the turbine blades are all parameters to consider in order catching the maximum wind power. Open fields, down hills and clean airflow locations are the best places to calculate the maximum wind speed cube for producing wind power. For example, out of a win which blows for 30 Km/H you will be able to produce 300W ( per one square meter cube ). Double of this wind speed will generate much more than double power, something like 2600 Km/H. This is why on windy areas and on high potential locations for windy days, wind power stations are the most green and economical solution.

Home installed wind power stations must have stable wind. If the wind flow is much disturbs, the efficiently of the wind power productions reduce dramatically. This is why you will always see the wind turbines in open area's or high on the top roofs. Comparing to solar panels, wind stations are much costly but also much more efficient. Over the years, you will be able to produce more energy and maintain the power station less than with solar panels. Same like solar systems, the wind systems usually charge large batteries for later use.

There are some advanced solutions to produce wind and solar energy together. The solar part of the system makes sure that the complete system will produce power in no wind days and the wind turbines are taking care of the no sun days. In totally, the system produced alternative power energy, green energy.resources:www.powersavingsystem.com

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Effects on sea Level

Sea Level

Rising Sea Levels Affect Millions Around the World, and Billions of Dollars in Property

Sea level is rising and the rate of change is accelerating. The combination of warming ocean water expanding and rapidly increasing melt of land and polar ice has increased the rate of sea level rise from about 6.8 inches average during most of the 20th C to a current rate of 12 to 14 inches per century. Based on this increase in rate of change, scientists are estimating that by the end of this century, the oceans will be from 20 inches to more than three feet higher -- and increasingly the higher levels seem probable.
“The big gorillas in terms of sea level are Greenland and Antarctica,” polar glacier scientist Eric Rignot told Gary Braasch for his book Earth Under Fire. “The response of those ice sheets to climate warming will be bigger than predicted.” Also, studies of many other past climate records show that at no time in the past 800,000 years, and perhaps much longer, has the CO2 concentration been as high as the present 387 parts per million (ppm). Jonathan Overpeck and coworkers, who figured out the temperatures during the last interglacial period, calculate that a continued increase in CO2 levels this century could bring us to a temperature equal to that which existed 130,000 years ago. At that time sea level rose several meters, fed by Greenland meltwater.

Sea level is measured now not only by direct tide gauges, but by an array of satellites which measure the height of the open ocean where no tide gauges could be placed.

In the United States, said a report by the U.S. Climate Change Science Program in January 2009, "rising sea levels are submerging low lying lands, eroding beaches, converting wetlands to open water, exacerbating coastal flooding, and increasing the salinity of estuaries and freshwater aquifers." Four of the top 20 cities with populations and infrastructure assets most exposed to increasing sea level and storm damage are in the United States: New York, Virginia Beach, Miami and New Orleans (study by Robert Muir-Woods and colleagues; see first link, above. Other cities listed in this study are Amsterdam, Rotterdam, Alexandria, Mumbai, Kolkata, Ho Chi Minh City, Bangkok, Guangzhou, Shenzhen, Hong Kong, Ningbo, Shanghai, Tianjin, Osaka, Tokyo and Nagoya).

World View of Global Warming has been documenting these changes since 1999, and in March 2010 we completed a re-photography expedition to North Carolina, Florida, and parts of Chesapeake Bay.

Warming Winds, Rising Tides: Florida and the Atlantic Coast

The entire coast of Florida is threatened by rising seas and stronger surges during storms, which is already having high economic costs. Looking ahead only 40 years, a study in 2007 by Tufts University and the Stockholm Environment Institute—US Center estimated that Florida’s average annual temperatures will be 5º F higher than today in 2050. Sea-level rise will reach 23 inches by 2050, and 45 inches by 2100. Maps in the report show an approximation of Florida’s coastline at 27 inches of sea-level rise, which is projected to be reached by around 2060 if little action is taken to control greenhouse gases.

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One little Step Can Change Big

Save Electricity
Whenever we use electricity, we help put greenhouse gases into the air. By turning off lights, the television, and the computer when you are through with them, you can help a lot.

Bike, Bus, and Walk
You can save energy by sometimes taking the bus, riding a bike, or walking.

Talk to Your Family and Friends
Talk with your family and friends about climate change. Let them know what you've learned.

Plant Trees
Planting trees is fun and a great way to reduce greenhouse gases. Trees absorb carbon dioxide, a greenhouse gas, from the air.

Recycle
Recycle cans, bottles, plastic bags, and newspapers. When you recycle, you send less trash to the landfill and you help save natural resources, like trees, oil, and elements such as aluminum.

When You Buy, Buy Cool Stuff
There are lots of ways we can improve the environment. One of the ways to reduce the amount of greenhouse gases that we put into the air is to buy products that don't use as much energy. By conserving energy, we help reduce climate change and make the Earth a better place. Some products – like certain cars and stereos – are made specially to save energy.

Some Things to Think About

Did you know that you can help the environment if you buy recyclable products instead of non-recyclable ones? Look for the recycle mark – three arrows that make a circle – on the package. Recyclable products are usually made out of things that already have been used. It usually takes less energy to make recycled products than to make new ones. The less energy we use, the better.

Solar Energy
Imagine that it's a hot summer day. You put a scoop of ice cream on the sidewalk, and it melts. Why? Well, you probably know that the sun causes the ice cream to melt. But you may not know that the sun produces solar energy. Solar energy is a fancy way of saying "energy that comes from the sun." Solar energy can be used to heat homes, buildings, water, and to make electricity. Today, more than 200,000 houses in the United States take advantage of the sun's energy.

Cars
Cars are an important part of life for most people. But cars also cause pollution and release a lot of greenhouse gases into the air. Fortunately, there are some cars that are better for the environment. These cars can travel longer on a smaller amount of gasoline. They don't pollute as much, either. Using these kinds of cars can help reduce the amount of greenhouse gases in the air.

ENERGY STAR®
Many things, like computers, TVs, stereos, and VCRs, have special labels on them. The label says "Energy" and has a picture of a star. Products with the ENERGY STAR® label are made to save energy. Buying products with ENERGY STAR® labels will help protect the environment.
collected good sources from satoebumi.blogspot.com to understand whats really happing with our earth.

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Global Warming is an International Issue

The average facade temperature of the globe has augmented more than 1 degree Fahrenheit since 1900 and the speed of warming has been almost three folds the century long average since 1970. This increase in earth’s average temperature is called Global warming. More or less all specialists studying the climate record of the earth have the same opinion now that human actions, mainly the discharge of green house gases from smokestacks, vehicles, and burning forests, are perhaps the leading power driving the fashion.

The gases append to the planet's normal greenhouse effect, permitting sunlight in, but stopping some of the ensuing heat from radiating back to space. Based on the study on past climate shifts, notes of current situations, and computer simulations, many climate scientists say that lacking of big curbs in greenhouse gas discharges, the 21st century might see temperatures rise of about 3 to 8 degrees, climate patterns piercingly shift, ice sheets contract and seas rise several feet. With the probable exemption of one more world war, a huge asteroid, or a fatal plague, global warming may be the only most danger to our planet earth.

Source-http://www.globalwarming.org.in

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