Global warming Definition and 217 Threads

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...

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

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...

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...

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...

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...

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...

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...

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...

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...

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?.

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...

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...

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...

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?

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?

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

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...

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

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

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...

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

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

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...)...

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...

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...

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...

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...

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?

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" [FONT="Times New Roman"]NASA administrator Michael Griffin defends the space agency's programs, including plans for a...

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

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...

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

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...

1) How come on the PhysicsForums almost no one says “global warming” instead they say “anthropogenic global warming” while the media, and the average person, always refers to it as “global warming”? 2) It is my understanding that if US legislators rule to try and combat anthropogenic global...

The latest photographic data.:smile: http://anthropology.net/files/warming.jpg

Not particularly looking for arguments or why you believe, just looking at the numbers.

The most used argument against "global warming skeptics" The most used arguements seem to be: 1:There is no debate on global warming 2:There is a scientific consensus. How can you respond to that?

I've seen it before that some people say that global warming will cause or does now cause areas to greatly cool as well. How is this true?

We haven't discussed that climate debate in New York the other day about the motion: "Global warming is not a crisis." If it wasn't for the posture of Michael Crighton, the alarmists may have won according to Gavin Schmidt...

Enjoy! http://video.google.com/videoplay?docid=9005566792811497638&q=%22The+Great+Global+Warming+Swindle%22 Oops 1 hr 15.56 min. (spin off from: https://www.physicsforums.com/showthread.php?t=159338 , where I promised: But that thread went in another direction, anyway, some...

In the early days of Global Warming, the "capo di tutti global warming capi", Stephan Schneider, made his world famous public appeal to commit noble cause corruption: http://stephenschneider.stanford.edu/Publications/PDF_Papers/DetroitNews.pdf It's likely that this appeal is one of the...

Now that the global warming fever has seriously infected the US, attempting to immunizing itself from the heresy deniers, itt may be an idea to observe the analyzis of sociologist Frank Furedi here about the tension between opressing *dangerous* ideas and free speech...

I'm a non-scientist trying to understand a bit about climate science and the state of it. It's mysterious to me why so many people (some on both sides of most debates I see!) seem to treat this as though it were a religious issue and not a scientific one. 1. My understanding is that the...

Andre, this is mainly concerning your work, especially with your claim that CO2 is not a gas that causes global warming. From what I have gathered (and I hope I don't make a fool of myself by saying this) but you have argued that CO2 levels have risen over periods of cooling in the past...

We face an energy crisis, since gas and oil resources are diminishing this century. Oil and gas production follow a bell-curve, and around the middle of the depletion of a gas or oil field, the production of that field decreases yearly. Apart from coal (for producing electricity) and nuclear...

Based on what I see and read, and in spite of the many attacks on Al Gore's laudable effort to help inform the public, there is a consensus that global climate change is real and caused in part by humans. The forecasts for future emissions cinch the debate. http://www.ipcc.ch/ From a...

Could heat from inside the Earth be causing global warming? If more heat was rising from the ocean floors would we notice - particularly if it was only happening in a few small areas?

After reading several papers and seeing gore's movie on GW I'm still searching for solid scientific causal evidence (versus correlations or circumstancial) that anthropogenic greenhouse gases are the cause of global warming in the post-industrial age. I accept we are in a warm epoch...

Interesting paper: http://arxiv.org/PS_cache/physics/pdf/0509/0509088.pdf On the Role of Global Warming on the Statistics of Record-Breaking Temperatures, S. Redner and Mark R. Petersen, But then again the world is bigger than Phili