Global warming Definition and 217 Threads

  1. S

    Sun & Global Warming: Does it Contribute?

    Does the sun contribute to global warming?
  2. V

    How bright is the future of Maglev Cars?

    Hey guys, I made a topic similar to this earlier, but after I was informed that my ideas has several flaws that would prevent it from working, I revised it and researched more about my topic. This is my original idea with several concepts that has changed. I am planning on making a mini-model...
  3. ohwilleke

    Is Physicist Lubos Motl's Criticism of Loop Quantum Gravity Valid?

    A recent paper by Maldecena and Susskind entitled "Cool horizons for entangled black holes" (http://arxiv.org/abs/1306.0533) argues that every entangled complex EPR pair of quantum particles must be topologically connected by an Einstein-Rosen bridge (aka a pair of wormholes within the light...
  4. Z

    Dipole Moment & GHG: Effects on "Badness

    How does the dipole moment effect the 'badness' of a greenhouse gas molecule? The following link describes what a dipole moment is and how is sums up the bond polarity of a molecule...
  5. fluidistic

    [Ecology] I think I'm nuts about ecology

    As an aspirant scientist, physicist to be more precise, I believe it would be "normal" to be an ecologist. In fact I've always taken care of the Earth in my life since I've been taught to be respectful toward it. This means don't throw objects in nature, don't kill amphibians, don't burn...
  6. I

    Number of Moderator Positions

    Actually, for most of its history the worst thing the Church did was excommunication, which is the same thing you're doing right now. Some scientists tortured sentient animals but that's no reason to accuse all scientists of that. Saying "you can always go to another forum" is like saying "you...
  7. R

    Can someone please explain to me what moment of inertia means?

    Can someone please explain to me what moment of inertia means?? I googled it and I found that moment of inertia is an objects resistance to angular momentum? What does that mean exactly? Can someone please briefly explain to me (in English) what it means or give me an example? Because I really...
  8. W

    How high could sea levels rise by 2100 due to melting ice sheets?

    So I am not sure exactly how high the seas will rise if the ice sheets of Antarctica and the Arctic continue to melt by 2100. My best guess would be a rise of about 3-5 feet. Would that seem reasonable. Its just this whole 50 foot increase doesn't really make sense in that time frame that I've...
  9. C

    What Are Michio Kaku's Contributions to Physics?

    Dr. Kaku is an eloquent speaker for Physics and he publicized sciences and raise global awareness of controversial issues on science (like nuclear weapons, global warming, etc.) I am not questioning the validity of his popularity. I am just curious, what has he done on the theoretical side...
  10. C

    Methane global warming potential

    I understand that CH4 absorbs more long-wave radiation, on a molecule-per-molecule basis, than CO2. I also understand that "four indirect radiative effects of CH4 emissions have been identified (see Prather et al., 2001; Ramaswamy et al., 2001). Methane enhances its own lifetime through changes...
  11. T

    News Does libertarianism just shift tyranny from the government to individuals?

    Ron Paul may very well be the most honest Congressman, but are any of his ideas really practical in increasing freedom? I agree with him that we don't need more government, but I don't think we need less either; we need more direct and accountable government. Please correct me if you think I am...
  12. S

    The Greenhouse Effect vs. Blackbodies vs. Global Warming?

    Can anyone explain what the right approach to this stuff is? It's an area I am largely ignorant about. According to the Stefan-Boltzmann Law, the Earth should be -18C. Obviously, this isn't true because the Earth isn't a blackbody. But my questions: 1. Why isn't the Earth technically a...
  13. H

    Global Warming: What Happens to Day Length if South Pole Melts?

    Homework Statement I swear this is the weirdest question I've encountered: If the South polar ice cap melts completely due to global warming, then what do you expect to happen to the length of the day? 2.Choices a. It will get slightly longer b. It will get slightly shorter c. It will...
  14. P

    Physics Project involving ice, gases, and global warming

    Alright, ASSIGNMENT it is required of me to to the physics part in a group project where the topic is "causes of global warming". my group has chosen methane clathrates or methane hydrates if you like (in the ocean, not on land). The way these work is that it is methane gas that is trapped in...
  15. DaveC426913

    Forget ocean levels rising due to global warming what if

    ...Earth stopped rotating? Most of North America would be swamped under poleward rushing oceans. A whimsical but cool look at an Earth stopped in its tracks... From http://bigthink.com/ideas/21768".
  16. Phrak

    Is Global Warming a Scientific Reality or Just Fearmongering?

    After the fiasco in exposure of the global warming liars, I don't see a single, recent post on global warming. Can we now take up this topic as one of cold, objective science rather than one where we are confronted with the Chicken Littles in love with instilling fear in others? What does...
  17. Beer w/Straw

    Examining the Debate: Global Warming and Politics

    I don't know if this is (the most beneficial) place to post this but... This notion seems to be under attack with politics and dronwing any science. Is this claim wrong or right?
  18. Greg Bernhardt

    Global Warming & Climate Change Policy

    [SIZE="4"]Attention: These rules are deprecated as of 6/9/2014 PF is announcing its regrettable decision to ban all topics of global warming and climate change indefinitely. At this time we are unable to effectively moderate on the issue of climate change and global warming. We hope this...
  19. A

    Lord Monckton: Global Warming big scientific fad

    Here's a very interesting You-tube interview Russia RT interview. The BBC has responded by announcing it's review of it's reporting of climate science BBC to launch review into allegations of bias in its science coverage. Here's the Mail's webpage BBC probes bias in its coverage of science and...
  20. C

    Is the Theory of Global Warming Falsifiable?

    I am 'the other kind' of skeptic about global warming. I look at climate charts, past predictions, and the many PF threads and come away unconvinced that global warming is occurring at all -- to speak nothing of cause. But global warming opponents are even less convincing to me, using outdated...
  21. N

    Is Global Warming Human-Caused or a Natural Earth Cycle?

    Hello. We are 3 boys who writes about global warming for a school project, and we would like to hear your opinion about; Whethever you think it is caused by the humans or whether it is just a phase in the Earth's cycle. And who/what do you think, is the cause of global warming. About what...
  22. T

    Is anthropogenic global warming a scientific theory?

    Earlier today, I posted on this issue and a lively discussion ensued. I'm happy to have received several responses. As I recall, each of these took issue with one or more of my posting's claims. An administrator inadvertently deleted the thread of our conversation before this conversation...
  23. D

    What would Richard Feynman say about Global warming?

    I wonder... Would it be something like that?
  24. G

    Is Global Warming Debunked by Thermodynamics?

    Ahhh yess the infamous global warming controversy... okay so i figured this would be a nice place to post this because it pertains to Thermodynamics A good friend of mine (who is my current roommate) loves to find things that go against what i believe and claim to prove it. A few weeks ago he...
  25. S

    Chris Matthews show, Global warming, and CRU Hack

    Woops, I apologize for the misleading subject heading as the events at CRU were not brought up at all, or even alluded to in the slightest. Not by Chris or any of the 4 members of his panel. What they did tell you was that if you were a democrat, you should get in line with the rest of the...
  26. D

    Will the Earth really flood when global warming happens?

    Will the Earth really flood when global warming happens? Seems far from definitive and far less clear than the science behind global warming. I remember my Oceanography professor challenging the notion that global warming would raise sea-level, shut off gulf stream, thermohaline circulation. My...
  27. W

    Is the Faint Young Sun Problem Solved by Increased Greenhouse Gases?

    I'm just wondering if Global Warming is considered a fact within the science community? I'm not talking about man made global warming, just global warming in general whether it be caused by nature or man.
  28. J

    Can trees actually contribute to global warming?

    Is there any proof that it is the CO2 levels that cause the temperature increases, and not that increasing global temps by themselves increase CO2 levels? It seems to me that the warmer it gets the more things would grow as long as they had sufficient water, if more things are growing then more...
  29. Pattonias

    News ABC News->US Military: Global Warming Helps Taliban

    ABC News-->US Military: Global Warming Helps Taliban Apparently terrorism is our fault due to our greenhouse gas emissions. We have been supporting it for years. This is probably one of the most far reaching news stories I have ever seen. Listen for yourself. I can't believe that they are...
  30. K

    Dark Surfaces and Global Warming

    Do dark surfaces exposed to the sun really contribute to global warming?
  31. J

    Global Warming Debate: Refuting Common Arguments

    At school I am constantly called stupid, or an idiot because of my global warming skepticism. I do not try to get into debates, but kids who think the have a good understanding of global warming try to anchor me to debate them. Although I try to avoid debate I do eventually get in them, and...
  32. R

    Global warming isn't anything to worry about

    I've heard a lot of scientists talk about it like it is a fact. They say that it is unnatural and caused by humans. The Earth goes through times where the temperature is very low (the ice age), and times when it is higher. One of those times is right now, I can't understand why so many people...
  33. B

    I'm not worried about Global Warming

    I'm worried what people will do to try to 'fix' Global Warming.
  34. Ivan Seeking

    Paint your roof white to reduce global warming

    http://www.timesonline.co.uk/tol/news/environment/article6366639.ece That should read that it would yield the same benefit as removing all of the cars for 11 years... https://www.youtube.com/watch?v=pLlxjYACa5U
  35. X

    How Do Clouds Respond to Global Warming?

    When it comes to global warming from CO2, the toughest question is how are clouds going to respond? The IPCC has about 20 different climate models, but only one includes a change in cloud cover. The reason is that there hasn't been much evidence (until now) about how clouds would actually...
  36. F

    Revolutionary Solution for Global Warming: Pumping Excess Water into Space!

    hey guys! why don't we just pump the excess water out the Earth's atmosphere into space? just build a pipe into space? nobel prize here i come...
  37. A

    Global Warming: Unraveling the Confusion

    I've been watching many documentaries on global warming these days. One of them said that: It was a BBC channel documentary. Global warming is causing the temperature of the Earth to rise. Global warming is due to increased CO2 levels in the atmosphere. This CO2 is attributed to human...
  38. ZapperZ

    India's Contribution To Global Warming - Cows With Gas

    This is the reason why we should invent hybrid cows. :) http://news.yahoo.com/s/time/20090411/wl_time/08599189064600 Zz.
  39. B

    News Is the Global Warming Hoax Really Unstoppable Every 1500 Years?

    I have recently completed S. Fred Singer's marvelous book, Unstoppable Global Warming Every 1500 Years In it, Fred shatters just about every global warming myth in existence. Of course Fred is a world authority on climate physics, and as such, he thoroughly documents his findings. About...
  40. L

    News Global Warming and the stupidity of (wo)man

    Global warming is happening, it could however we a natural cycle that the Earth goes through and little effected by humans, we really don't know for sure. We sure should hedge our bets and try not pollute this planet but it seems that these global warming activists have an unstated major premise...
  41. Loren Booda

    Lightning as a measure of global warming

    1. Is an annual increase of lightning strikes worldwide a measure of global warming? 2. What has been the correlation between such discharges and temperature in recent decades?
  42. E

    Are We Actually Entering an Ice Age Instead of Global Warming?

    Does anyone else believe that we are not going through global warming but actually and ice age?
  43. Evo

    NASA NASA global warming satellite crashes after launch

    Ouch, $289 million. I wonder why it malfunctioned? http://news.yahoo.com/s/ap/20090224/ap_on_sc/sci_carbon_satellite
  44. X

    Is Earth's Temperature Governed by Physics Alone?

    The temperature of the Earth is governed by physics, namely the Stefan-Boltzmann law which states that the amount of energy radiated is proportional to the fourth power of its temperature. ERad = SB * Temp^4. Or Temp = (ERad/SB)^0.25 Where: SB, the Stefan-Boltzmann constant is 5.670 x...
  45. X

    Global Warming Changes in Heat Content

    Some people tend to think of Global Warming in term of air temperatures on the surface of the earth. However, the Earth is composed of many more things that can absorb heat energy. Interestingly, there is not as much coverage on all the other parts of the Earth as they don’t have as much of an...
  46. ZapperZ

    Hundreds Attend Global Warming Protest

    :) Zz.
  47. A

    Carbon filters? part soloution of global warming?

    When air goes through a carbon filter it separates the carbon and turns it into water and lithium carbonate. Could the lithium carbonate be sold and that money used to buy parts for hydro electricity plants that use the water, or the water be used for drinking as it is already pure?
  48. E

    Does the data support anthropogenic global warming theory?

    According to HadCRU global temperature warming per decade has been .12C with uncertainty intervals of .13C (since 1995) (using Santer17 formula) which given my thoughts of an upward heating bias due to data handling and urban heat island effect still indicates that since 1995 - there has been no...
  49. H

    Is Stratospheric Cooling Proof of CO2-Induced Global Warming?

    Officially there is no global warming (NOAA ,October 8, 2008, National Weather Service JetStream - Online School for Weather) http://www.srh.noaa.gov/srh/jetstream/atmos/ll_gas.htm quote It has been thought that an increase in carbon dioxide will lead to global warming. While carbon...
  50. L

    Didn't Global Warming Theory Predict An Increase In Ice Levels At The Poles?

    If so, wasn't it confirmed when we saw an increase in ice levels at the poles this year?
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