A 'global warming' question?

Question

Ok so lets say global warming really is happening. Then explain to me why the wolrd was ice before and melted. There were no factories and such before? What about that? Do you global warming people study history and realize that the world changes itself and is going thru a NATURAL change. If you people were alive back then u would of drove everybody with your theories about farting too much or something stupid. Please realize the world will melt and there is NOTHING we can do about it. The world will be a waterworld someday and thats mother nature. Nothing we do can change it. Please study your history books.

Answer 1

I just love the answers to these questions.All the weather and climate experts shouting GW. How many weather and climate people can tell what the weather will be like in 24 hours....answer = none. It is impossible to include all the variables, like an increase in co2 will increase plant growth or how much the oceans will absorb co2. The truth is they dont know... but there is lots of grant money and paid jobs for scare mongering. Remember yk2 or whatever it was .Every computer was going to fail and the world was coming to an end at the stroke of midnight 2000.....Computer companys made a fortune for scaring everybody. As did the building companys that built fallout shelters in the 50's below peoples houses.The list goes on and on. The historical facts show the earth heats up and cools down ,with or without man....the only thing now is people can make money from it...

Answer 2

Basically we know it's warming, and we've measured how much:

http://www.ncdc.noaa.gov/img/climate/research/2005/ann/global-blended-temp-pg.gif

Scientists have a good idea how the Sun and the Earth's natural cycles and volcanoes and all those natural effects change the global climate, so they've gone back and checked to see if they could be responsible for the current global warming. What they found is:

Over the past 30 years, all solar effects on the global climate have been in the direction of (slight) cooling, not warming. This is during a very rapid period of global warming.

http://news.bbc.co.uk/2/hi/uk_news/6290228.stm
http://www.pubs.royalsoc.ac.uk/media/proceedings_a/rspa20071880.pdf

So the Sun certainly isn't a large factor in the current warming. They've also looked at natural cycles, and found that we should be in the middle of a cooling period right now.

"An often-cited 1980 study by Imbrie and Imbrie determined that 'Ignoring anthropogenic and other possible sources of variation acting at frequencies higher than one cycle per 19,000 years, this model predicts that the long-term cooling trend which began some 6,000 years ago will continue for the next 23,000 years.'"

http://en.wikipedia.org/wiki/Milankovich_cycle

So it's definitely not the Earth's natural cycles. They looked at volcanoes, and found that

a) volcanoes cause more global cooling than warming, because the particles they emit block sunlight

b) humans emit over 100 times more CO2 than volcanoes annually

http://www.gaspig.com/volcano.htm

So it's certainly not due to volcanoes. Then they looked at human greenhouse gas emissions. We know how much atmospheric CO2 concentrations have increased over the past 50 years:

http://en.wikipedia.org/wiki/Image:Mauna_Loa_Carbon_Dioxide.png

And we know from isotope ratios that this increase is due entirely to human emissions from burning fossil fuels. We know how much of a greenhouse effect these gases like carbon dioxide have, and the increase we've seen is enough to have caused almost all of the warming we've seen over the past 30 years (about 80-90%). You can see a model of the various factors over the past century here:

http://en.wikipedia.org/wiki/Image:Climate_Change_Attribution.png

This is enough evidence to convince almost all climate scientists that humans are the primary cause of the current global warming.

Answer 3

The fact that the climate has changed in the past due to natural forcings does not in any way invalidate the idea of anthropogenic global warming. Climate changes because of natural AND artificial causes.

Yes, of course there are many natural drivers of climate.
The biggest of these are the Milankovich cycles that drive the ice ages.

BUT none of these natural drivers has changed significantly in the past 100 years. What has changed is a near doubling of the greenhouse gas CO2, and that change is caused by humans burning fossil fuel.

Answer 4

Remix, you know the world changed because scientists used proxy data to give estimates about atmospheric concentrations and climate hundreds of thousands or even millions of years ago. They even came up with legitamate theories as to why these changes occured. You apparently believe the scientists when they look back in time, but now you don't believe them as they are observing the changes occur in real time? Do you understand that the data collected now is far more accurate? Reasons why climate changed in the past include orbital cycles, impact events, extreme volcanic activity, and yes, greenhouse gas concentration. Scientists have looked at all other possibilities and decided that the current warming trend is due to greenhouse gas concentration.

Answer 5

I agree with you 10000%!I belive exactly what you have said is true about 'global warmiong' just being part of natures cycles.

Nature is allways chaing,there is nothing one species can do to chnage it,for good or bad,it is just to big and powerful.

Answer 6

Liberal Idiot's are the Problem, Not Mother Earth.

Answer 7

i dont know dear..i hv no idea but still i agree with you..!!