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News about Climate Change and our Planet

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LETTER: Science says man affects global warming – The Northwest Florida Daily News

The letter, “Man not the cause of Earth’s climate woes,” ignores the reality of climate change. The truth is that the vast majority of reputable scientists agree that global warming and severe climate change are not only a fact but caused by human activity and will continue if we don’t make some drastic changes. As for myself, I have been teaching certification in Earth and Environmental Science so my knowledge is not based on political rhetoric or the media.

Though it is true that global warming has occurred in the past, it has not been to this great extent. Scientists can determine the amount of carbon dioxide in our atmosphere and the temperature back many years. They have identified a direct correlation between atmospheric carbon dioxide and the Earth’s temperature. In the last 30 years, carbon dioxide and other greenhouse gases in our atmosphere have increased sharply every year.

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More:Guest Column: Producing plastic products generates greenhouse gas emissions

There are two major causes for this increase. First: our factories, power plants, and automobiles are releasing large amounts of greenhouse gases into the atmosphere. In the past, much of the carbon dioxide was used by plants in photo-synthesis. Second: Human activity is destroying the rain forests at an alarming rate and we are destroying other green spaces to make way for our large cities and highways. As a result of these two factors, carbon dioxide in our atmosphere has reached a dangerous level.

Letter to the Editor

As the Earth’s temperatures rise, ice at the poles and glaciers begins to melt. This isn’t theory but can be easily observed and measured. Ice has a tendency to reflect the sun’s rays but water and soil absorb heat. As the amount of exposed water and soil increases, this melting of the ice surfaces is accelerated and ocean levels begin to rise. Ninety percent of the Earth’s fresh water is in frozen form on the continent of Antarctica.

This ice is melting at an alarming rate. It is estimated that by the end of the century, ocean levels will have risen 30 feet. So, if you want a home on the Gulf, buy property in Crestview.

Robert Hirsch, Miramar Beach

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