Atmospheric Conditions Revealed after 20 years?
958281
Sounds like your supplier is tapped out today :( Withdrawal must be hell.
311984
Well, you could connect them in a few ways. One would be to study ice cores (from glaciers) to see what was in the atmosphere over time, which shows you trends in long-term weather changes. Another would be to study coastal zones and make predictions and models concerning what happens in different zones when sea levels rise due to global climate change. The imagination knows no end to what you can study!
127042
1. continental drifting\n\nVery slow but substantial changes.\n\n2. changes in sun's energy\n\nSuspected to be large, but not yet demonstrated conclusively.\n\n3. variations in the positions of the earth relative to the sun\n\nFairly small effect. \n\n4. volcaic eruptions\n\nLarge observable effects in global temperature etc. \n\n5.greenhouse effect\n\nKeeps the earth about 60 degrees F warmer than it would be otherwise.\n\n6. global warming\n\nIn the last hundred years, the earth has warmed measurably. It is not clear if this is due to human activities or not, but many suspect it is.\n\n7. air pollution\n\nHas increased the ozone depletion at the poles in springtime, which introduces more UV lower into the air column. This might be changing the climate, although it is not known for sure.\n\nAlso blocks sunlight locally near sources of soot. It is not clear how big an effect this has globally, but it might be a cooling factor. \n\nAcid rain produced by S02 emissions has been involved in some deforestation, which has probably had an effect on the climate, but again this is not known for sure.
561124
Yes. My neighbor has collected weather data for the last 15 years.  It's mostly temperature, rain amount, and a general description of the weather.  I did a statistical analysis of the temperature data and discovered that the trend indicated an increasing temperature.  I used a least squares analysis and plotted the graph.  I did this for a monthly average, and a yearly average.  The trend is upward for both, and some record highs were recorded in several months. I don't want to get into the details for anyone who is a statistical genius at this point.  The outcome seems to depend on which political party you belong to in the US. \nThere are also some wild fluctuations in temperature, and wind events.  We have had some severe storms that have damaged large areas of pristine forests, and we have had some major flooding. I live in Pennsylvania and, yes, I would say the temperature is changing somewhat by inching upwards, based on temperature data.  The voracity of some storm events are very damaging, as viewed over my lifetime in this geographic area.  Friend to friend, I would think about moving to Europe if I was you.  You are going to experience a cataclysmic event in the near future that will have devastating effects on the UK.  At least that's what my research shows.  But, it's just the rantings of a conspiracy nut, that's what my friends say.
911814
Weather of December 1981\nSnowiest of 20th century
826729
its been millions of years
3501
Depends on how you look at it..we seem to be in the effects of global warming..that does mean that the planet as a whole is warming up... but there are areas..where..global warming means more severe temperatures and weather as well..it certainly is hard to tell what the planet is doing on its own and what exactly we as humans have done to cause changes..I would say nope we are not near another ice age..it really wasn't that long ago that we did have an ice age..
217680
What i guess you should be looking for will be atmospheric sciences or u could scratch it down to atmospheric physics. There are thousands of articles and publications on the latter. Check your local public library or bookstore.
825178
the time has long passed
712355
Probably the same as it is now.  \n\nI have a late 1980s video tape of James Burke, the popular British science presenter, showing how by the late 1990s Indonesia would have grown so hot due to "global warming" that unstoppable numbers of migrants would be forced to flood the beaches of northern Australia.\n\nIt never happened.  Now, yet another ten years after, it still hasn't happened, and there's no perceptible change in the climate of Indonesia (alleged holes in Arctic polar ice notwithstanding).  \n\nIt would mean easy money for me to take any bets you care to offer that in five years Australia's climate will be much the same as today.
574756
Sometime in the 20th century
999435
Perhaps you are too young to remember this, but 20 years ago (when I was in elementary school) the environmentalists were worried about global cooling.  A couple years later when I got to Junior high all of a sudden it was global warming that the environmentalists were all worried about.  \n\nThe truth is that the most liberal (generous) readings were that the Earth's average surface temperature had risen by 1 degree farenheit.  Those readings were taken from airport thermometers.  Temperatures taken in trees showed no significant changes.  \n\nAddressing the airport readings...In the early 20th century airports were out in the country far from urban areas and runways were generally made of dirt as were the roads, but by the end of the 20th century they were a part of the urban sprawl.  Cement sidewalks and paved roads and runways cause the temperature to rise and could explain the 1 degree increase in temperature all by themselves.
581432
atmospheric pressure, winds, light
221448
there is some evidence of ice melting rapidly at the artic(s).\n\nwe/humans are waiting to see how much we can fool around with the enviro till something happens.\n\nsome small changes in weather have been noticed past 2-3 years. \n\nnobody is sure how bad it is. wait for june and watch till of the next 12-36 months after that...some small evidence might crop up there.
690955
Go onto the Net and search for NEO's (Near Earth Objects) and you can download all the Data you need. Generally we are hit by a very large body every 200,000 years. Check out Tunguska in Siberia on the Net, where a comet exploded in the upper atmosphere, flattening 100,s of 1000,s of square kilometres of forest in 1908. JULES
486349
If you really want a global overview and want to get a handle on weather causes, you should delve into the Weather Blog at http://360.yahoo.com/ki_te_moana\n\nDo not forget to pull up the urls in the Blog Roll and the ones that appear in the articles and in the blast.  Save the ones you find interesting.\n\nThe Atmosphere and the Oceans are intimately related weatherwise.  If you are not interested in that relationshi;p, you will never get a handle on what you want.\n\nThere are lots of answers to Weather Questions in my Answers.  If you start clicking things off a little at a time the complete picture will start forming eventually.\n\nMuch easier to do in the ara of Satellite Views over the Internet than it was 40 years ago.
537292
No and yes. \n\nWith regards to un-educated and mis-informed rubbish that goverments tell us that global warming is an artifact of human activity on this planet no I do not. Global warming is a topic which for the last thirty years or so has been 'fashionable' to study. If you look it at this way, the Earth is approx 4 to 6 billions years old and we are only studying the past few centuries. To me this is not even a dot on the Earths timescale so how can we possibly deduce mans influence on the climate. The climate of the earth is changing constantly. What we recognise as the four seasons; sping, summer, autumn (fall) and winter have only been in existance for the past few million years!\n\nAlthough some scientists have looked at the recent erosion of the ozone, they fail to see the bigger picture and take into account the varying orbit the planet has around the sun, its tilt and wobble (see link below for info on the Milankovitch Theory). They also fail to recognise in they're studies the gravitational pull of the earths core and the movement of the fluids contained within. Additionally the 'hotspots' or 'solar flares' on the sun are not taken into account when global warming is discussed, of which also effects our climate.