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Martin
Martin, Engineer
Category: General
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Experience:  i'm 41 and i never stopped studying and experimenting
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I would like to find some real data and charts by a credible

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I would like to find some real data and charts by a credible government source that outlines the impact of humans on global warming vs. non human impacts such as volcanoes, natural fires., etc. My real question is what part of the global warming problem are humans responsible for.
This would be a great start: http://www.epa.gov/climatechange/
Customer: replied 4 years ago.
thanks for the link but I really don't want to do the research myself which is why I was asking the question for someone to find me the exact data and charts that show where the emissions come from.
Afraid I am not an expert on emissions so I will opted out of the question so that another expert can help you with your question.
Hello and welcome.
For a good quick look at this, check the graph on the top of that page:
http://climate.nasa.gov/evidence/
The natural cause is pretty much the section before the start of the industrial era that you can see under the spotted line.
Now, how much is caused by human. That is not possible to say yet. The production of carbon in the air sure is a big cause and it show daily to those in contact with coral reef or Maple Syrup producer (like me) as it kill trees and we must use chalk to combat the produced acidity of the rain. That said, in science: Correlation does not imply causation. The added carbon may in fact only be a coincidence.
There is LOT of possible added causes not related to carbon. The accelerated decay of radio active matter in reactors, the increase of Eddy current on earth from the always growing concentration of metals etc...
There is also the time frame of the problem. I personally think a lot more time should be spent on the Henrik Svensmark theory of cosmic ray regulating cloud cover on earth:
http://en.wikipedia.org/wiki/Henrik_Svensmark
and this video in 5 part:
http://www.youtube.com/watch?v=Z4XYxL66O_s
From now on, it is really hard to tell what will happen. The albedo effect and the melting of large underwater methane ice may cause more warming.
Martin, Engineer
Category: General
Satisfied Customers: 4837
Experience: i'm 41 and i never stopped studying and experimenting
Martin and 63 other General Specialists are ready to help you
Customer: replied 4 years ago.
This is really helpful thanks. One last question. I have seen a chart somewhere that Human impact is small compared to natural impacts (volcanoes, evaporation, etc.). Have you seen a chart like this? I will accept after you answer this since this was really want I am looking for although your other info is very helpful.
This depend of what we define as an impact. Physical change to the geography sure is more impacted by nature, take the Chicxulub crater as an example:
http://en.wikipedia.org/wiki/Chicxulub_crater
In the short time human impact more the reducing of vegetative and animal presence, but that can recover to some point over long period of time if no irreversible point are reached (species extinction and all kind of tipping points).
Some of the current worst impact are not deforestation and things like that but water pollutions. Things like the plastic continent:
http://en.wikipedia.org/wiki/Great_Pacific_Garbage_Patch
Or anti-biotic and other chemical that make it to waterways. It is hard to even talk about impact for those as most of this will end up eventually under lot of sediment or under a continental plate into the magma. In fact the biggest impact of all is probably the tectonic plates that moved from the Pangaea unique continent to our current continental configuration.
If human would impact faster than nature, the earth would eventually look like Cybertron:
http://en.wikipedia.org/wiki/Cybertron
I highly doubt that as i believe nature have lot more impact. A lot more human would be needed to reverse that trend. It would be possible for human to overpower nature but it would require a concerted effort to achieve this, not something likely to happen.
If we come back to CO2, human impact more on that one. Here is more numbers that might interest you, especially for volcanoes:
http://www.newscientist.com/article/dn11638-climate-myths-human-co2-emissions-are-too-tiny-to-matter.html
Martin, Engineer
Category: General
Satisfied Customers: 4837
Experience: i'm 41 and i never stopped studying and experimenting
Martin and 63 other General Specialists are ready to help you

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