Warmer Model

Frnds could u pleazzzzzz suggest me a working model on global warming?

i need a good, a little bit complicated working model on the base of global warming/ climate change.
Could u suggest a good model please ,provided it should be practical.
frnds its urgent.
a request.

● COMPUTER MODEL

A handy climate model you can download and use yourself can be obtained from the National Center for Atmospheric Research, it’s the Single Column Community Climate Model http://www.cgd.ucar.edu/cms/sccm/sccm.html

Some good source of info regarding climate models are…

• Climate Models and their Evaluation
A summary from the IPCC

http://www.ipcc.ch/pdf/assessment-report/ar4/wg1/ar4-wg1-chapter8.pdf

• Climate Model Outputs
Numerous outputs and scenarios from the IPCC’s most recent report

http://www.ipcc-data.org/ar4/gcm_data.html

• Climate Change Prediction: A Challenging Scientific Proble
From the Institute of Physics, explains how climate model are used to make future predictions

http://www.iop.org/activity/policy/Publications/file_4147.pdf

• General Circulation Models of Climate
A history of global climate modelling

http://www.aip.org/history/climate/GCM.htm

• Climate Models: An Assessment of Strengths and Limitations
A detailed analysis of the science of climate modelling

http://www.climatescience.gov/Library/sap/sap3-1/final-report/default.htm

• Climate Model
Wikipedia's page on climate models

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

• Scientific Output Evaluation
Based on the global Climate Prediction project

https://results.cpdn.org/

● MODEL REPRESENTATION

A fairly crude experiment you can do is as set out below. I've written the instructions so as to compare air, methane and carbon dioxide but you could of course just compare air and CO2.

OBJECTIVE
To compare the thermal properties of carbon dioxide, methane and air.

EQUIPMENT
• 3 identical plastic bottles
• 3 temperature probes
• 3 pre-drilled bungs (optional, helpful)
• Stopwatch
• Carbon dioxide
• Methane
• 3 Clamp stands if you have access to them (not essential)
• Lamp (or other heat source)

METHOD
• Clean and dry the bottles (they should be dry inside as well)
• Remove any labels
• Insert temp probes through the bungs. If you haven’t got bungs then drill holes in the bottle caps and insert the temp probes through the hole, seal the edges of the hole with plastecine or similar.
• Fill one bottle with carbon dioxide. If you’ve got a soda stream use that, if not put some indigestion tablets into a balloon containing some water, hold the neck of the balloon closed and wait for it to fill with carbon dioxide given off by the tablets. Fill the bottle with the carbon dioxide from the balloon.
• Fill one bottle with methane – from the normal domestic gas supply.
• Seal all three bottles with the bung or the cap
• Secure a bottle in each of the clamp stands
• Place all three bottles equidistant from an indirect heat source such as a lamp (don’t switch the lamp on yet)
• Wait until the temp in all three bottles is identical
• Switch on the lamp
• Take temperature readings from all three bottles for the next 30 minutes at one minute intervals
• Plot the results on a graph

RESULTS
This graph shows the results of an experiment we did a few years ago using just carbon dioxide and air, you should be able to achieve similar results in your experiment

CONCLUSION
The experiment should demonstrate that carbon dioxide and methane will retain more heat than air.

LIMITATIONS
The experiment does not explain why the greenhouse gases retain more heat than air, this is explained at the quantum physics level and isn’t something that can be done at home. Here’s an answer I provided a while back which explains the physics http://answers.yahoo.com/question/index;_ylt=AnmTuE2OjGAQAjTPTUDPiEnty6IX;_ylv=3?qid=20091204204454AAGi9b2&show=7#profile-info-6yLHYT9Caa

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