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Global Warming

              About Global Warming

 

Global warming is the term used to describe a gradual increase in the average temperature of the Earth's atmosphere and its oceans, a change that WILL permanently upset the Earth’s CLIMATE FOREVER,-unless we all start working toghether, and immediately to avoid this.-  

While many view the effects of global warming to be more substantial and more rapidly occurring than others do, the scientific consensus on climatic changes related to global warming is that the average temperature of the Earth has risen between 0.4 and 0.8 °C over the past 100 years. The increased volumes of carbon dioxide and other greenhouse gases released by the burning of fossil fuels, land clearing, agriculture, and other human activities, are believed to be the primary sources of the global warming that has occurred over the past 50 years.

Scientists from many parts of the world,-carrying out global warming research have recently predicted that average global temperatures could increase between 1.4 and 5.8 °C by the year 2100.

Changes resulting from global warming may include rising sea levels due to the melting of the polar ice caps, as well as an increase in occurrence and severity of storms and other severe weather events.

Earth is naturally insulated by a delicate balance of heat-trapping (or "greenhouse") gases in the atmosphere. When the sun shines on the Earth, some of that heat is absorbed, keeping Earth warm enough to support life.

The problem is that over the last century, we humans have been releasing more and more carbon dioxide and other heat-trapping gases into the atmosphere when we burn fuels and cut down forests. These additional gases have upset the natural balance of our atmosphere, trapping more heat than is healthy for the Earth.

The result is human-caused global warming, which brings serious threats from increased flooding to the spread of disease to the disruption of agriculture in many parts of the world.

Scientists tell us that stopping global warming is urgent -- we have just a few years to turn around the growth of greenhouse gas emissions in order to avoid the worst effects. The good news is that we can achieve these emissions reductions with effective national policies and international treaties. We must insist that businesses and governments join individuals around the world to greatly increase energy efficiency, widely adopt renewable energy, and commit to stopping climate change. Success is possible, but we need your help.

No human challenge is so potentially uniting as the climate crisis. Our human drive to invent and build has led to extraordinary advances and great technological promise. It's also had grave, unintended consequences. And unless we face the climate crisis with ingenuity, resolve, and a sense of urgency, much of the world as we know it will begin to unravel before our eyes.

The warning signs are plain to see. The 10 warmest years on record have all occurred since 1990. Mountain glaciers are fading on every continent and the sea ice is melting. The seas have begun a slow but menacing rise.

The science behind global warming is often portrayed as enormously complex, but some of it is quite simple. It begins with a ray of light, shot through space from the staggering inferno of our sun. That sunbeam delivers energy to earth, giving us light and warmth and life.

As some of this energy radiates back toward space as heat, a portion is absorbed by a delicate balance of heat-trapping (or "greenhouse") gases in the atmosphere that create an insulating layer. Without the temperature control of this greenhouse effect, the Earth's average surface temperature would be 0°F (-18°C), a temperature so low that the Earth would be frozen and could not sustain human life as we know it.

The most abundant of the greenhouse gases is water vapor. In addition, there are other powerful greenhouse gases like carbon dioxide (CO2), methane, and nitrous oxide. Each of these is a natural part of the never-ending cycle of life, death, and decomposition on Earth.

But since the onset of the Industrial Revolution humans have been pumping out more and more of these and other greenhouse gases. Scientists are clear: human activities are contributing to global warming by adding large amounts of heat-trapping gases to the atmosphere. Our fossil fuel use is the main source of these gases.

Every time we drive a car, use electricity from coal-fired power plants, or heat our homes with oil or natural gas, we release carbon dioxide and other heat-trapping gases into the air. The second most important addition of greenhouse gases to the atmosphere is related to deforestation, mainly in the tropics, as well as other land-use changes.

 But we can look back even further. By drilling into the deepest glacial ice we can measure CO2 deep into time. And this ice library shows more carbon dioxide in the atmosphere than at any time in last 650,000 years.

As a result of the build up of gases, the temperature is beginning to rise. Adults today have already felt the average global temperature rise more than a full degree Fahrenheit (0.8°C) during our lifetimes.

For a global system that is delicately balanced, the rise in temperatures will pose serious threats:

• Rising sea levels, leading to more coastal erosion, flooding during storms, and permanent inundation
• Increased drought and increased incidence of wildfires
• Severe stress on many forests, wetlands, alpine regions, and other natural ecosystems
• Impacts on human health as mosquitoes and other disease-carrying insects and rodents spread diseases over larger geographical regions
• Disruption of agriculture in some parts of the world due to increased temperature, water stress, and sea-level rise in low-lying areas such as Bangladesh or the Mississippi River delta

Other projected impacts include increased intensity of hurricanes;

 The long-term destabilization of the Greenland and West Antarctic ice sheets, leading to much greater sea level rise; the acidification of the world's oceans; and a vastly increased rate of species extinction.

Wonders such as the Great Barrier Reef and the Amazon could collapse under the weight of just a few more degrees. And hundreds of millions of people may be forced from their homelands as the climate shifts, creating increased political and economic instability.

According to a study led by a distinguished British economist, Sir Nicholas Stern, suggests that under business-as-usual scenarios climate change could reduce overall economic activity in the range of 5 to 20%-more likely on the high side of this range. Think Great Depression, or world war.

We can - and must - act urgently if we are to limit and eventually halt the impacts of global warming on human communities and natural ecosystems. The greater the magnitude and rate of warming, the greater the chances are for truly devastating - and potentially irreversible - changes in the Earth's climate system. Even by acting today to reduce our emissions from cars, power plants, land use, and other sources, we will see some degree of continued warming for a period of time because past emissions will stay in the atmosphere for decades or more.

 But, the window for effective action is closing fast and responding to the climate crisis will take commitment and ingenuity. The actions we take in the next several years will determine the kind of world that will survive.-

WE MUST ACCEPT THE FACT THAT WE ARE NOT ONLY DOING THIS FOR US, BUT FOR OUR CHILDREN, GRANDCHILDREN, AND FUTURE GENERATIONS.-

We have lacked full global leadership and political will to implement these solutions,- even if our future depends on it. But now we need to insist that businesses and governments all over the world join individuals in taking the steps needed to get the job done. We need to help citizens everywhere understand how the choices they make in their daily lives can make a real difference, and we need to provide incentives for all of us to make better choices.

The climate forces we have set loose are great indeed. But the world we build as we move forward to meet this challenge will be a sight to behold. This is our opportunity to come together and make a real difference,- "BUT WE MOST START TO ACT NOW"   !!!!

WHAT WE CAN DO:

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MOST PEOPLE don’t realize that solid waste reduction and recycling help address global climate change. How? The manufacture, distribution and use of products – as well as management of the resulting waste – all result in greenhouse gas emissions. Waste prevention and recycling reduce greenhouse gases associated with these activities by reducing methane emissions, saving energy, and increasing forest carbon sequestration.

THEREFORE, YOU CAN HELP IN MANY WAYS:

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1) Seal and Insulate your house.-

2) Heat and cool "Smartly"

3) Reduce, Reuse, and Recicle (the 3 R's)

4) Have more plants and trees in your yard.

5) Use water efficiently.- Save on the use of water.

6) Use fuel economy vehicles, to eliminate air pollution

7) Avoid using your car when ever possible.

Avoid using plastic or paper bags when grocery shopping.- Bring your  own shopping bags,- like ones used to go the beach.

9) MOST OF ALL - SPREAD THE WORD !!!!  

 "lLets just hope that it is not too late, and we still have a chance to SAVE OUR PLANET !!!!

 Eva de la Torriente Diaz

JULY 22, 2008

About the Author

writer - political, family and other issues.

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