The National Academy of Sciences, a non-profit institute of scientists dedicated to objective scientific research.
Global warming is an increase in the temperature that we are used to and a greater g change in our climate.
There is a natural greenhouse effect that keeps the planet warm. But that is not causing global warming. It is the enhanced greenhouse effect, caused by man, that is causing global warming.Carbon dioxide is a naturally occurring greenhouse gas. At normal concentrations, it, along with other greenhouse gases, helps maintain global temperatures at a level that is comfortable for humans and other animals that have adapted to the present climate. This carbon cycle is the natural part of global warming.By adding new carbon dioxide to the atmosphere, which we do by burning fossil fuels such as coal, oil and natural gas, and by cement manufacture, we interfere with the natural carbon cycle and create enhanced global warming. Throughout human history until the Industrial Age, atmospheric carbon dioxide levels were in the range 260-280 parts per million (ppm) and never higher than this. The increase in concentrations of carbon dioxide to the present level of over 400 ppm is accepted by research scientists as principally the result of human activity and so the resultant enhanced global warming is caused by human activity.We have also destroyed huge forests all over the world (deforestation) that used to remove carbon dioxide from the atmosphere.
There are many reasons for people to deny that global warming is taking place. Some with vested interests deny that global warming is happening, just as some years ago they denied that cigarettes pose a health risk Some deny that global warming is taking place because they feel that humans could not possibly do anything that would affect the whole world in this way. They are unaware that human activities emit 30 billion tonnes of carbon oxide just from burning fossil fuels, each and every year. Others deny that global warming is taking place because they would rather believe those who loudly proclaim that this is so, rather than accept the advice of most scientists.
give me answer
Global warming is an increase in the temperature that we are used to and a greater g change in our climate.
To convice the read that golbal warming is caused naturally
Well ,unfortunalty............ our golbal warming will caused disater that will effect our plant with disasters. golbal warming warms the earth by amount of degree and then the more disasters happen because there is such a drastic change in the earth. to find out more i suggest the national giographic movie 6 degrees could changed the world. so a really big impact!
In order to answer the question, it would help to know what the meaning of golbal is!
well there are a lot of reasons that we cause golbal warming. The main one I can think of is every time that you plug something in. I believe that global warming is not being caused by humans. There are just as many scientist saying that it is not happening than there are saying that it is.
They are concerned because one specie can end up dominating the ecosystem.
the golbal economy will decarease because there will so many problem such as it will affect our business and people will die by the disaster. will be food crises in the world. there will no one to help them the golbal economy will decarease because there will so many problem such as it will affect our business and people will die by the disaster. will be food crises in the world. there will no one to help them
it related
Global warning is caused by George washingotn have fun in the American revelution, this I specialfjn
Technology can influence the environment in many ways, most of them negative. Since the Industrial Revolution, transportation and communication technology has been largely based in fossil fuels, and that has led to global warming. However, technology also has a huge impact on social environments because it enables people to do things more efficiently.
Yes really it is and I'm not kidding it is. I think that they keep that school clean because when i went by it was so clean so the answer is yes.