Im doing my science fair project on global warming i think its not true would should i add to my hypothesis ?

The global warming argument is based on the assertion that the earth's temperature has risen 0.6 degrees in 100 years. I think global warming is a myth and this is why.





2. 6/10ths of a degree is well below the difference in measurement accuracy from the instruments we had 100 years ago to the ones we have today. Not a valid scientific measurement. The inaccuracy of instruments exceeds the amount of the ';observed'; difference. Do you really think that in the 1860's they could measure temperatures to the tenth of a degree? or that they cared enough to take and record enough measurements, all over the world, that would statistically be accurate enough to determine the true ';average'; temperature ?)





3. Even ';IF'; the 6/10 of a degree in 100 years IS accurate, the earth is generally accepted to be about 4.5 Billion years old (that's 4,500,000,000 years) anything that happens in 100 years is WAY less than the blink of an eye, in the scope of the planet.





100 years is too short of a period to measure. The earth goes through heating and cooling cycles that last thousands, even millions, of years. 100 years is too short of a time to observe a viable ';trend';.





4. Even ';IF'; the measurement inaccuracies were not a factor, and even ';IF'; 100 years were enough time to observe a trend, NO ONE CAN PROVE that the 6/10 of a degree increase would NOT HAVE HAPPENED ANYWAY, regardless of the activities of humans.





The logic is like saying that the sun comes up every morning because I make Coffee. Because every time I turn on my coffeemaker, the sun comes up within an hour or so.





There are volcanic eruptions (that happen naturally) which in a day or two emit more pollutants into the atmosphere than 1000 years of all the cars in the world. This has been happening for billions of years.





The estimate mass of the earth is 5.9 X 10 to the 24th Kilograms. That means 5,900,000,000,000,000,000,000,000 Kg.





Now write that number down next to the estimated amount of carbon dioxide supposedly emitted by humans and automobiles etc. (the EPA estimate for all of North America is 1488 million metric tonnes in 2005 - see link below). 1488 million metric t.. 1,488,000,000 metric tonnes, or 1,488,000,000,000 Kg.





1.488,000,000,000 Kg of CO2, compared to the 5,900,000,000,000,000,000,000,000 kg of Earth's mass equals:





1 KG of CO2 per 3,965,000,000,000 kg of the earth. It's such a small proportion, it can't be expressed very well as a percentage.





It can be expressed as parts per million, it is less than one one-millionth OF a part per million.





Totally insignificant. Don't think about it in human terms (1.4 trillion Kg is a lot, 100 years is a long time).





Think in terms of the earth. 100 years is a miniscule amount of time. The amount of CO2 produced is utterly and totally insignificant.





Im doing my science fair project on global warming i think its not true would should i add to my hypothesis ?
Just say it could be true but the cause could be from the Sun. With our current lack of sunspots we could get some global cooling soon.


As you said the model they have is flawed. Methane is far greater a green house gas then co2.


You have to be wise and pretend to go along with the common view but say there could be alternatives.


If you are not wise they could give you low marks. Unfortunately this is the way the system works. Those who upset the band wagon get bad marks.


Smile.