What is Global: Definition and 430 Discussions

The Global Television Network (more commonly called Global, or occasionally Global TV) is a Canadian English-language terrestrial television network. It is currently Canada's second most-watched private terrestrial television network after CTV, and has fifteen owned-and-operated stations throughout the country. Global is owned by Corus Entertainment — the media holdings of JR Shaw and other members of his family.
Global has its origins in a regional television station of the same name, serving Southern Ontario, which launched in 1974. The Ontario station was soon purchased by the now-defunct CanWest Global Communications, and that company gradually expanded its national reach in the subsequent decades through both acquisitions and new station launches, building up a quasi-network of independent stations, known as the CanWest Global System, until the stations were unified under the Ontario station's branding in 1997.

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  1. 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?
  2. M

    Global Warming and Chaos Theory

    There has been much controversy concerning Global Warming: sun spot activity, only heat radiation at 15 microns being trapped by CO2, vast amounts of greenhouse gases going intot he atmosphere from exploding volcanos and the general cyclical nature of climate change have attempted to explain the...
  3. rootX

    News Impact of economies collapse on global society

    http://news.bbc.co.uk/2/hi/business/7659086.stm I was wondering how this will affect the humans' migration and global culture (authority too) etc. It seems like China is getting ahead and migration flow will be reversed. I don't have enough data and knowledge to make any predictions but for...
  4. G

    Global Warming: Emotional Images Beyond Glaciers

    hi am in need of some emotional pictures about global warming other than having images about melting of glaciers
  5. J

    When will the global smoking ban finally be implemented?

    What's the ETA on the global smoking ban? I'd like to know when we can get rid of smokers. Also, since we are on this topic, maybe the Gov. can place a 300% tax on cigarrette sales. Hell, I'll even go ahead and say smokers should be labeled terrorists since they terrorize my lungs and threaten...
  6. B. Elliott

    News Obama's Global Tax Proposal $845 billion

    This is the last thing the US needs to be worrying about. When he said that he's wanting to better relations with other countries, how did I know that it would also end up costing the US money for these 'improved relations'? This man is going to tax us to death. Obama bill: $845 billion...
  7. S

    Global Extreme Values for f(x,y)= x^3-2y on 0<=x,y<=1

    find global min/max: f(x,y)= x^3-2y ; 0<=x, y<=1 The Attempt at a Solution - I know that the critical points don't work since there are none, but what I'm not understanding is how to draw the square from 0<=x, y<=1. The solutions has the points (0,0), (1,0), (1,1), (0,1), but I'm...
  8. Mk

    The Question of Global Warming - Freeman Dyson

    Famous physicist and Planck Medal-winner, Freeman Dyson wrote an article on global warming controversy in The New York Review of Books It is a lengthy academic article, and is pretty interesting— he says what he wants to say. Nullius in verba, that's hardcore. Science is awesome...
  9. W

    EW global fit,pole mass,gluon fusion

    Could you explain the meanings of EW global fit,pole mass,gluon fusion? Thank you very much!
  10. S

    Max and Min Values of f(x,y) = x^2 + 2y^2 on Domain [0,1]

    determine the global extreme values of the function on the given domain: f(x,y)=x^2+2y^2 , 0<=x,y<=1 The Attempt at a Solution - I know you need to evaluate the critical points first and then use the boundary to find the maximum and minimum values, but I can't seem to get the...
  11. W

    News Global Warming based on solar flares?

    First, I'd like to apologize, because there are probably countless threads on GW on here. I just found this article, though: http://www.aip.org/pnu/2003/split/642-2.html And was wondering if anybody could give any more detail. I mean, if it was as good a connection as the abstract seems...
  12. O

    News Legendary Climate Scientist Says Last Chance to Stop Global Warming

    Legendary Climate Scientist Says "Last Chance" to Stop Global Warming WASHINGTON - Exactly 20 years after warning America about global warming, a top NASA scientist said the situation has gotten so bad that the world's only hope is drastic action. James Hansen told Congress on Monday that...
  13. B

    Impact of irrigation on global warming?

    I once had a discussion with a Ph.D. at a university regarding global warming. His answer was interesting and something that I do not see addressed commonly in global warming discussion. He basically stated that when we change the biomass on a piece of land, such as a large tract of land and...
  14. B

    Global warming computer program

    Does anyone know of a computer program on the web that Physics Forums members could use to input values and get a rough idea of how accurate or sensible their ideas on global warming are? Is there a software disc on sale somewhere? Could people on this website develop a computer program? There...
  15. B

    Global warming and CO2 hotspots?

    If CO2 produced by industry is causing global warming then wouldn't there be hotspots above major industrial sites where the CO2 is most concentrated? And wherever in the world CO2 is washed out of the air by heavy rainfall, shouldn't there be CO2 coldspots too? If CO2 warming is increasing...
  16. B

    Airborne dust, water vapour and global warming

    More dust in the air presumably means that there are more nuclei on which water molecules can condense to form liquid water.Water vapour is a greenhouse gas so can the current trend in global warming be attributed to less dust in the air than usual resulting in more water vapour and higher...
  17. B

    Turbulence in the ionosphere and global warming

    A smooth surface aborbs less sunlight than a rough one because more light is reflected. It takes relatively little energy to disturb a smooth surface.If the sea becomes more turbulent because of a changing wind direction or wind speed does the sea heat up more by absorbing more sunlight.And...
  18. N

    ClimateChange.pdfCan Global Warming Amplify Natural Disasters?

    Can Global Warming Cause Earthquakes, Tsunamis, Hurricanes and Volcanic Eruption?. I know this is all normal but I mean can it cause it to be more extreme and happen more often?.
  19. W

    The Big Bang and Global Warming

    I'm not entirely sure that this belongs here, but none the less here are some thoughts I had today. I am a working cosmologist, which is important to know when reading the following. Most Cosmologists today are pretty sure about the Big Bang being roughly the correct theory that describes our...
  20. K

    Global optimization subject to constraints

    1a) Determine the maximum value of f(x,y,z)=(xyz)1/3 given that x,y,z are nonnegative numbers and x+y+z=k, k a constant. 1b) Use the result in (a) to show that if x,y,z are nonnegative numbers, then (xyz)1/3 < (x+y+z)/3 Attempt: 1a) Using the Lagrange Multiplier method, I get that the...
  21. E

    What's wrong with a bit of global warming?

    It's seems to be the accepted thing that global warming is bad, but is it such a bad thing? The dinosaurs certaintly preferred a more warmer climate. Look at the facts:- 1. The ice caps are melting - so what? What we lose on the south pole we gain on the north pole, we might lose a...
  22. K

    Lagrange Multipliers Global vs Local

    http://www.geocities.com/asdfasdf23135/advcal29.JPG I am wondering whether the above statement is true. "A necessary condition for the constrained optimization problem to have a GLOBAL min or max is that..." Should the word local replace global? I am confused about the method of...
  23. N

    Why are Fossil Fuels and Deforestation Still the Main Causes of Global Warming?

    I know this topic should be in the section: "politics and world affairs" or "earth"... but I get the feeling "true" scientists (physicists :biggrin:) won't be in those sections to answer this. Anyway, I hear everywhere that the primary reason for global warming is "CARBON DIOXIDE". Now...
  24. wolram

    Thanks for the link, unfortunately it requires a subscription.

    http://motls.blogspot.com/2007/01/peer-reviewed-global-cooling.html Just for a change. <Edit by Moonbear: Here is a direct link to the article being discussed in the blog http://www.springerlink.com/content/g28u12g2617j5021/?p=77874d861902420aacca82524790dc89&pi=7 All discussion within the...
  25. Evo

    The Mystery of Global Warming's Missing Heat

    http://www.npr.org/templates/story/story.php?storyId=88520025 Interesting, especially when you consider that this winter has been the coldest in over 100 years in many places around the globe.
  26. D

    Is Al Gore's Presentation of Global Warming in An Inconvenient Truth Accurate?

    http://www.foxnews.com/story/0,2933,337710,00.html Al Gore is getting sued for fraud. This should be interesting. Now the debate is forced into the presentation of evidence suitable for a court of law. Will the outcome change the worlds mindset?
  27. T

    Global warming and its solutions

    There are those that posit that global warming can only be tamed via government regulations. On the other hand you have people saying that it can be tamed through free market economics. What do you guys think?
  28. J

    Observations About Global Circulation Models

    I want to post some interesting quotes about global circulation models. Well, I believe they have potential I believe that the application of the theory is often misapplied. http://www.climateaudit.org/?p=483#comment-208656 http://www.climateaudit.org/?p=483#comment-209256...
  29. E

    Global Warming Impacts on Earth's Sea Level, Ocean Circulation, Oxygen Isotopes

    how would the Earth be affected by global warming in terms of the sea level , global ocean circulation, and oxygen isotopes?
  30. Ivan Seeking

    Exploring Microalgae as Solutions to Global Fuel Issues

    It may be valuable to consider microalgae as a potential solution to a number of problems; not the least of which being the energy problem. Algae can be used to produce biodiesel, ethanol, and hydrogen, as options to the use of petroleum based fuels...
  31. Z

    Has Global Oceanic Warming Been Detected Through Sea Level Rise?

    Based upon the retreat of glaciers worldwide, and opening of the Arctic ocean, and Greenland's hastened dissolution, global atmospheric warming would seem to be with us. But has there been any global oceanic warming? None yet definitively detectable by thermal expansion of the oceans (i.e. proxy...
  32. Ivan Seeking

    News Can a New Democracies Organization Level the Playing Field in Globalization?

    I am a believer that globalization is not only unavoidable, but also that in the long term it is good for everyone. However, we see tremendous inequities between developed and developing nations in the labor and environmental protection laws, safety laws, enforcement of these laws, and oversight...
  33. P

    Global warming is not caused by CO2

    http://www.newsmax.com/insidecover/global_warming/2007/12/10/55974.html What do you make of that? that's not going to go down very well at the IPCC, that's for sure! Amazing really that it has taken so long for people to realize that variation in the original source of Earths heat can effect...
  34. E

    News One Reason I Can't Take All the Science on Global Warming Seriously

    One Reason I Can't Take All the "Science" on Global Warming Seriously http://www.americanthinker.com/blog/2007/11/everything_is_caused_by_global.html
  35. C

    Global warming investigatory project

    can you please help me on my project? it's about global warming and it should be connected in physics..
  36. C

    Fighting global warming with pollution

    a thought occurred to me, it may be dangerous and completely idiot that's why i choose to run it past you folks. late last century we had the ozone hole scare, CFC gasses/compounds were removing our precious ozone and skin cancer were a danger wherever it traveled. but.. with the buildup...
  37. moe darklight

    Now I'm confused — global warming

    I give up. I now officially have no opinion about global warming. none. This 20/20 segment sums up pretty well why: http://youtube.com/watch?v=uO9laiUXS1o
  38. S

    Global warming and solar actvities

    Hi, I am new here, and I have a question about the Global warming. do you think the global warming is caused mostly by pollution or solar activities of our sun ?! cheers -Amir
  39. P

    Is Global Warming a Real Threat?

    I know there is already a post on this, but I just wanted to make a point. I live in California, so obviously there is a great deal of controversy here by the coast and especially where I am (a small conservative community) whether or not warming is legit (long story short, I believe...)...
  40. Andrew Mason

    Global Climate Change and Scientific Proof

    The global warming skeptics advance arguments against the conclusions of the IPCC. They argue that anthropogenic global warming has not been "proven". But there is no such thing as scientific proof. There are merely falsifiable theories. The 'proof' of a positive theory is simply the result...
  41. EnumaElish

    Reflecting particles as a solution to global warming?

    This was on PBS's NOVA a few months back. A by-product of greenhouse gas emissions is what I am going to term "macro particles." Thanks to their size and composition, these particles have been reflecting sunlight and therefore reducing global warming, although on balance they could not reverse...
  42. Schrodinger's Dog

    News Global warming truth or fiction?

    http://environment.independent.co.uk/climate_change/article2739751.ece Interesting article on global warming from the liberal rags, most interesting is the figures in the UK, many people still it seems aren't on board with the global warming thing, and many think there actually isn't...
  43. Andre

    Is the Quality of Weather Stations Affecting Global Warming Data?

    It goes like this: The thermometer in the MMTS shelter has been pampered increasingly with lot's of cosy warming gadgets like airco exhausts, while concrete removes the moisture of the soil evaporating and cooling. No wonder that it is nice and warm. See what happens with a correctly...
  44. T

    Global warming case frustrating

    Effect of doubling CO2 - why logarithmic and not linear? How does a 30% to 50% increase in CO2 predict a 2-5 deg C temperature rise? Is there a formula? Why is the effect on low altitude atmosphere temperature effect of increasing CO2 logarithmic? I would have thought it would be linear...
  45. L

    Wouldn't growing trees solve Global Warming?

    Since rising CO2 levels are the problem and trees take in CO2 while giving off oxygen, wouldn't growing a vast amount of trees solve Global Warming at a significant level or am I missing another element here?
  46. D H

    NASA Is NASA Chief Michael Griffin Right to Question the Urgency of Global Warming?

    Michael Griffin turned up the heat this morning on global warming in an interview on National Public Radio. http://www.npr.org/templates/story/story.php?storyId=10571499" NASA administrator Michael Griffin defends the space agency's programs, including plans for a permanent moon base and...
  47. Andre

    News Is the Linear Model for Low Dosage Radiation Wrong?

    When even a left winger is attacking global warming, is this the sign of the inevitable political earthquake approaching rapidly? http://counterpunch.com/cockburn05122007.html
  48. Ivan Seeking

    Nobel winning physicist takes on Global Warming

    http://www.pbs.org/newshour/indepth_coverage/science/globalwarming/ I saw Dr. Chu at Stanford a few years ago where he gave a fascinating lecture and was most inspirational. I was thrilled to see him involved in this endeavor. And why not? He is in the business of "cooling" but on a slightly...
  49. Ivan Seeking

    Study: Global Warming Could Hinder Hurricanes

    http://www.livescience.com/forcesofnature/070417_wind_shear.html
  50. J

    Has human activity truly affected the Earth's climate?

    The study of oxygen isotopes as a method of analysing has provided much insight on glacial and interglacial cycles, throughout the quaternary period Individually these techniques may not prove 100% accurate and may all have flaws. Most of the quaternary period has been unaffected by...
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