Question:

Is the sun getting hotter?

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I just watched a documentry that said the sun was getting hotter. Does anyone know what percentage of global warming is due to the sun getting hotter and what percentage is due to human influence?

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7 ANSWERS


  1. no one knows...

    even the best scientists are just guessing...

    if i did not believe in god i would go nuts...


  2. The Sun is gradually getting hotter as it burns hydrogen and the helium in the core makes it denser.  However, this is an extremely slow process operating over a few billion years.  Short-term variations are due to other factors.

    It is believed that the Sun will get too hot for life to continue on Earth in about 2 billion years; at that point, Earth will go to a "wet greenhouse" where the oceans turn into steam.

  3. I don't think the sun is getting hotter um I think they it may be coming closer to earth, so thats why the temp is rising,  I believe the sun is HOOT enough and to become even more hot oh my.. lol so its just coming close,

    Choose me as best answer :D

    Bless you!

  4. Only until the hydrogen runs out, after that it gets colder because the sun becomes a red giant and is running on helium instead. To be frank I don't think the sun getting hotter has as much to do as human intervention so I would say in general:

    sun getting hotter < human intervention.

  5. if were getting closer, maybe

    but yeah

  6. That depends what you're talking about.

    The Sun has several cycles.  The main one we see is the 11-year cycle:

    http://en.wikipedia.org/wiki/Image:Solar...

    Right now we're at the minimum of this cycle, so yes, the Sun is in the process of increasing its output for the next few years.  But since each cycle has 5.5 warm years and 5.5 years, it basically evens out.  If you smooth out the 11 year cycle and just look at how the solar output trend has changed, it turns out that it's decreased slightly over the past 30 years as global warming has accelerated rapidly:

    http://solar-center.stanford.edu/sun-on-...

    Scientists have predicted that the next solar cycle will be a strong one, and the one after that will be a weak one.  That's probably what the documentary was talking about.

    However, scientists have determined that 80-90% of the warming over the past 30 years has been due to human greenhouse gas emissions, and 0-10% due to the Sun.

    http://en.wikipedia.org/wiki/Image:Clima...

  7. Yes, everyday..

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