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What role do trees play in global warming?
Trees help to reduce global warming by 'cleaning the air'.
- A gas that helps to cause global warming is carbon dioxide.
- Trees 'breathe' just like we do except when they breathe they take in carbon dioxide not oxygen.
- When a tree breathes out it breathes out oxygen.
- This is then breathed in by a human.
- Carbon dioxide is breathed out the the human...
- ...and breathed in by the tree...
- This carries on continuously.
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Natural forces play no significant role in the current global warming. The three most prominent natural factors are solar output, volcanic eruptions and out gass…ing, and vegetation. For the past thirty years solar output has slightly declined, but not enough to detect any measurable climate effect. The particulate spewed by volcanoes tends to temporarily lower earth's albedo, reflecting more sunlight, and the hydrogen sulfide gas vented also lowers the temperature. CO2 emitted by volcanoes will, over extended periods of time, counteract this. Currently humans release more than 100 times as much CO2 as all earth's volcanoes combined. Vegetation can sequester carbon, which is how the vast deposits of coal and oil formed, hundreds of millions of years ago. Fifty million years ago a plant called Azolla, which grew in warm Arctic regions pulled about 40% of the CO2 out of the atmosphere, causing earth's temperature to fall over a span of just a few million years. None of these natural forces, of course, play a significant role in the current global warming trend, which is primarily driven by anthropogenic (human caused) oxidation of fossil carbon. _________________________________________________________________ Answer: No scientist would disagree that without natural global warming we would be unable to exist on this planet. The past 11,000 years have seen a fairly steady warming trend totaling about 11 degrees C. Approximately 10 degrees of this warming has occurred before man started burning coal. The past 150 years has seen another degree of warming. Science experts all agree that a portion of this degree of warming is also natural. Many science experts, including many climate experts do believe that man is responsible for a portion of this one degree of additional warming. Some even are willing to say that man may be responsible for most of this one degree of warming. The bottom line though is that the overall warming trend of the planet would be impossible without natural forces such as the sun. Nature is the dominant factor here in every conceivable measurement, including emission of green house gases. Nature produces 99.7% while man produces less then 0.3%. All warming is due to our very naturally occurring sun. Without nature, there would be zero warming.
Humans are responsible for serious deforestation as well as the burning of fossil fuels (coal, oil and natural gas). Climate scientists agree that this is what is causin…g global warming and climate change.
There are so many greenhouse gases contributing to global warming so trees are important to absorb all those gases and provide fresh oxygen for the survival of human being…s.
Trees absorb carbon dioxide (CO2), store the carbon and release Oxygen. When the trees are cut down less Carbon Dioxide can be converted and it builds up in our atmosphere. CO…2 is a greenhouse gas which captures the sun's heat. This is causing global warming.
Trees use the carbon dioxide in the air to grow. And that reduces the amount of carbon dioxide in the air, which reduces the green house effect. They need Carbon Dioxide in …order to photosynthesize. Since CO2 is the leading contributor to global warming, having the trees take it out of the atmosphere to be converted into oxygen, slows the process somewhat.
Yes. A mature tree can hold around a tonne of carbon that would otherwise end up as carbon dioxide in the atmosphere and contribute to global warming. Of course, trees do not …live forever, and it is important to ensure a new tree is allowed to grow when the old one eventually dies.
Technology involves factories and manufactured products. Pollution increases as technology rises. Global Warming is caused by different harmful chemicals. Factories produce sm…oke and synthesized chemical fused in different processes. Therefore, technology CAUSES global warming in a such a way of waste production.
Trees actually act against it. They take the amosphere's carbon dioxide and turn it into oxygen, reducing the effects of the greenhouse effect. It kills the trees so we don't …get as much oxygen!
Trees remove carbon dioxide, the main greenhouse gas causing global warming, from the atmosphere. All plants, including trees during their energy cycle known as …photosynthesis metabolize carbon dioxide gas from the air, produce sugar, and release oxygen. This process of decreasing the level of carbon dioxide in the atmosphere reduces the global warming affect caused by carbon dioxide emissions.
trees reduce global warming, but they can't prevent a process that is already taking place. trees obsorb CO2 and turn this into oxygen, reducing the Green house gas… concentration in the atmosphere, reducing the greenhouse effect or global warming.
Living trees contribute to reducing global warming by removing carbon dioxide (CO2) from the atmosphere. The amount they remove and store is substantial. However trees have re…spiration and do expel some CO2. They also will eventually die and rot. All decaying organic matter also gives off CO2 or worse, methane. Trees have the added advantage though, of being able to store carbon during their lifetime, and even after that, if the wood is preserved.
As we know CO2 is a greenhouse gas that contributes to global warming. Trees take in a larger amount of CO2 than they give off. This is because they use the carbon to grow. Wh…en a tree is cut down it can no longer absorb carbon, and if it is burned it will put off that carbon back into the air as carbon dioxide. More importantly the tree acts as a habitat for other plants such as grass and bushes that also go through this process.
Since 1750 when we started building factories and steam engines we have been burning more and more fossil fuel (coal, oil and natural gas). This releases all the carbon… that had been stored underground for millions of years. This extra carbon dioxide is a powerful greenhouse gas that is contributing to the runaway greenhouse effect, which is causing global warming, which causes climate change. Humans have also cut down the vast forests that used to cover our planet. Plants and trees absorb and store carbon and release oxygen (Fifty percent of a tree's weight is carbon). These huge carbon sinks are still being destroyed in many parts of the world. We burn oil to drive our transport and generate electricity. Too many factories are letting out CO2 and other pollutants. Obviously by the human activities being done by over three billion people in the world: pollution of all sorts. We are certainly a contributor. With 7 billion people (and climbing rapidly) on earth utilizing earth's resources and producing mountain of wastes, to think that we have little impact to earth is very naive and complete denial. There was a time when people believed that the ocean had endless amount of fish for us to eat. That's certainly isn't true now. By changing the ratio of forest to land clearings and altering the composition of the atmosphere. Oxidization of bio materials for energy. Cattle farming. Rubbish dumping. Destruction of plants and Forests that in turn rot and create more CO2 and so on.
Carbon dioxide is a naturally occurring greenhouse gas. At present concentrations, it helps maintain global temperatures at a level that is comfortable for humans and other an…imals that have adapted to the present climate. Increases in carbon dioxide levels in the atmosphere can result in global warming, by trapping more heat. Fortunately nature is normally in balance and carbon dioxide concentrations remained around 260-280 parts per million (ppm) In the very long term, concentrations have fallen below these levels, but always coinciding with Ice Ages. A very good demonstration of this come from an ice core two kilometres long and equivalent to 150,000-year record of warmth, cold and warmth, that a French-Soviet drilling team at Vostok Station in central Antarctica produced in 1985, a complete ice age cycle. The CO2 levels in the Vostok Station record got as low as 180 parts per million (ppm) in the cold periods and reached 280 in the warm periods, but never higher. But in the atmosphere over the ice, the level of the gas had already reached 350, far above anything seen in this geological era, and is now around 380 ppm. From the time of the Industrial Revolution, things began to change, slowly at first, then gradually more quickly, especially after 1970. As the concentration of atmospheric carbon dioxide increased, so did average global temperatures, just as climate models indicate they should. Globally, most of the warmest years on record have occurred during the last ten years.
It converts carbon dioxide into oxygen. Carbon dioxide traps heat so when the trees convert carbon dioxide into oxygen, it not only reduce the amount of heat by a bit but also… give us oxygen to breathe in.
Lots of roles, they kill and hurt animals alot.
Cutting down trees releases carbon dioxide from the trees. It also reduces the amount of carbon dioxide that is removed from the atmosphere, as destroyed trees can no long…er take in CO2, thus elevating greenhouse gas levels and contributing to global warming.