crtchrktrcr

So many things wrong w this one. First of all, what's normal? The cycles take thousands of years, and you're going to decide this one isn't normal? The earth becomes more and more populated every year of course, and these buildings, and factories do affect temp to some degree, but that is by no means global warming. Also since technology has basically been created during an 1/8th of the cycle, how can it be 'unusual'... You're still a ****** flip, I am coming to flint soon, expect to get your *** beat. I hope your mommy spanked you for what you did at daddys work.

XFlipX

The carbon monoxide levels are abnormal compared to other cycles richard. I didn't decide what is normal, a whole **** load of scientist did, and since I believe science over you, it should be clear that i am going to side with them.

And since I don't know who you are, how can you say i am still anything?

As far as getting my *** beat...Come to flint. Come to my work. Acid Works Tattoos. Ask for me. Wednesday, Saturday or Sunday. Bring Friends it will be fun.

Waiting for you,
Flip

EZEC

how about the thousands of scientists who think gw is not a man made problem and the science involved is junk???

and antarctica used to be temperate rain forest with an average temperature of 74 degrees is that abnormal???

for people to think man caused any kind of global scale climate change in a 150 years is insane......and the morons who actually think we can do anything to stop it or reverse it need to stick to something they can understand....like feeding their kids ritalin.

Judd

My only input is that they have only been recording temperatures for that pas 200 years, the earth is how many million years old. if it is a cycle, its not gonna be a small short lived cycle, it would be more like a couple hundred year cycle.

crtchrktrcr

^exactly, ignorance is bliss for some.

Oh and flip, u remember me. Remember you tried to **** me on a fifty, and I flipped the tables and fvcked you, and had your mommy even yell at you. Oh I won't bring any friends, less witnesses the better.

rUu

so you ARE gay.

50Outlaw

wrong, the cycle is abnormal for what we've seen in our lifetime but it is not abnormal.. the eath has tilted 1degree which is causing that side of the icecap to melt, but it will just freeze up on the other side.. because the earth tilted it changed the equator and made some places warmer and some places colder...


understand? i tried to dumb it up for ya

rUu

thank you, professor.

crtchrktrcr

We have seen the earth tilt on its axis upto 13*, it varies yearly.

And ruu, its 'earth' not 'eath'

rUu

yeah....about that....

i'm not the one that said it. it was 50outlaw.
pop a few more of those vicodin. you'll be alright.


reading is goooood.

Snipes20

mmmmmmmm........vicodin

rUu

that stuff makes me itch.
i'd rather get loaded on scotch. :YEAH

GundamnitPete

exactly, for all we know it's a cycle that takes hundreds of thousands of years or possibly even more.

GundamnitPete

gaaahiiiven

rUu

50Outlaw

jesus.. one little typo makes your day...


and i was agreeing with you

XFlipX

I never bought a fifty or even had a fifty to sell...ever. You have the wrong guy.

I am 26. Mommy doesn't make any deals for me.

Flip

XFlipX

I am not saying that man is solely responsible but to say there is no such thing as global warming is ignorant. I have looked at both sides and time will tell, like Judd said there is plenty of evidence on both sides, and I am not making a decision one way or the other, but they all agree that global warming exist, it is the cause that is the argument.

Flip

XFlipX

Thanks for the lesson, but I don't need to have things 'dumbed down for me:'

How about this, I found facts on the topic and I have resources to site, you have your just your mouth, and since debate requires resources and listening, I invite you to read the following and respond with evidence to refute my findings.

I feel Stanford is a good start for me, the ball is in your court. Unfortunately I was unable to get the scientist at Stanford to dumb this down for ya!

Flip

Global Warming

world map showing surface temperature anomalies in 2005
Map showing the global surface temperature anomaly in 2005. According to the NASA Goddard Institute for Space Studies (GISS), 2005 was one of the warmest years in over a century. Click image to enlarge.
Image credit: NASA Goddard Institute for Space Studies (GISS).
What is it?

Global warming -- a gradual increase in planet-wide temperatures -- is now well documented and accepted by scientists as fact. A panel convened by the U.S National Research Council, the nation's premier science policy body, in June 2006 voiced a "high level of confidence" that Earth is the hottest it has been in at least 400 years, and possibly even the last 2,000 years. Studies indicate that the average global surface temperature has increased by approximately 0.5-1.0°F (0.3-0.6°C) over the last century. This is the largest increase in surface temperature in the last 1,000 years and scientists are predicting an even greater increase over this century. This warming is largely attributed to the increase of greenhouse gases (primarily carbon dioxide and methane) in the Earth's upper atmosphere caused by human burning of fossil fuels, industrial, farming, and deforestation activities.
Factors

Greenhouse Gases
The increase in greenhouse gases caused by human activity is often cited as one of the major causes of global warming. These greenhouse gases reabsorb heat reflected from the Earth's surface, thus trapping the heat in our atmosphere. This natural process is essential for life on Earth because it plays an important role in regulating the Earth's temperature. However, over the last several hundred years, humans have been artificially increasing the concentration of these gases, mainly carbon dioxide and methane in the Earth's atmosphere. These gases build up and prevent additional thermal radiation from leaving the Earth, thereby trapping excess heat.

Power plants, cattle, and cars
"Power plants, cattle, and cars are some of the major contributors of greenhouse gases such as carbon dioxide and methane."- Earth Observatory Global Warming Article
Image Credit: NASA's Earth Observatory


Solar Variability & Global Warming
Some uncertainty remains about the role of natural variations in causing climate change. Solar variability certainly plays a minor role, but it looks like only a quarter of the recent variations can be attributed to the Sun. At most. During the initial discovery period of global warming, the magnitude of the influence of increased activity on the Sun was not well determined.

Sun image EITSolar irradiance changes have been measured reliably by satellites for only 30 years. These precise observations show changes of a few tenths of a percent that depend on the level of activity in the 11-year solar cycle. Changes over longer periods must be inferred from other sources. Estimates of earlier variations are important for calibrating the climate models. While a component of recent global warming may have been caused by the increased solar activity of the last solar cycle, that component was very small compared to the effects of additional greenhouse gases. According to a NASA Goddard Institute for Space Studies (GISS) press release, "...the solar increases do not have the ability to cause large global temperature increases...greenhouse gases are indeed playing the dominant role..." The Sun is once again less bright as we approach solar minimum, yet global warming continues.

Trends & Effects


According to the Intergovernmental Panel on Climate Change (IPCC), average global temperatures may increase by 1.4-5.8ºC by the end of the 21st century. Although the numbers sound small, they can trigger significant changes in climate. (The difference between global temperatures during an Ice Age and an ice-free period is only about 5ºC.) Besides resulting in more hot days, many scientists believe an increase in temperatures may lead to changes in precipitation and weather patterns. Warmer ocean water may result in more intense and frequent tropical storms and hurricanes. Sea levels are also expected to increase by 0.09 - 0.88 m. in the next century, mainly from melting glaciers and expanding seawater . Global warming may also affect wildlife and species that cannot survive in warmer environments may become extinct. Finally, human health is also at stake, as global warming may result in the spreading of certain diseases such as malaria, the flooding of major cities, a greater risk of heat stroke for individuals, and poor air quality.
Where Do I Learn More?

You might find the following resources useful:

Global Warming -- Frequently Asked Questions

This site put together by the National Oceanic and Atmospheric Administration, gives a brief synopsis of the 2001 report by the Intergovernmental Panel on Climate Change, and the National Research Council's 2001 report Climate Change Science: An Analysis of Some Key Questions, as well as National Climatic Data Center's data resources.

"Plows, Plagues, and Petroleum: How Humans Took Control of Climate" by William F. Ruddiman; Princeton University Press (2005); ISBN: 0691121648

An excellent book, written by one of the world's top paleoclimatologists, but understandable to both scientist and nonscientists alike. Ruddiman summarizes, explains with research and facts, and places in context the influence of humans on atmospheric composition, climate and global warming. His focus is on the big picture -- changes to climate over the last 400,000 years with special attention to changes beginning 8,000 years ago. He makes only brief mention of solar variability as affecting climate (because his focus is on longer trends), but he does an excellent job of describing how small complications in the Earth's orbit cause regular glaciation on 100,000, 41,000, and 22,000 year timeframes. Note that a primary hypothesis of his book is the suggestion that early human agriculture started having an effect on the Earth's climate as early as 8,000 years ago. This is an intriguing idea which is still waiting for further scientific verification or discredit. However, the information in Ruddiman's book is still immensely useful in understanding current global warming and climate change.

"Ancient Observations Link Changes in Sun's Brightness and Earth's Climate" by Kevin D. Pang and Kevin K. Yao; EOS, Transactions of the American Geophysical Union, Volume 83, number 43, 22 October 2002, pages 481+.

This is an article written for scientists. The authors track 9 cycles of changes in solar brightness over the last 1800 years, and then correlate these with various changes in the Earth's climate. As you undoubtedly know, an especially suspicious correlation is that of a period of no sunspots (and hence low solar activity) corresponding with the Maunder Minimum of ~1645 to 1715 A.D, a period of extreme cold in Europe. Because of the complexity of effects on the Earth's climate, the jury is still out on whether this period of a Little Ice Age was indeed caused by the lack of solar activity. However, the correlations are intriguing and continue to be discussed at scientific meetings such as the AGU. You can find lots more about the Maunder Minimum and its relationship to sunspots on the web.

For more information on global warming in general and student activities and research topics in particular, visit:

* CNN.com- Study acquits sun of climate change (9/15/2006)

* An MSN news report that Earth warmest in at least 400 years, panel finds and a related CNN story Study: Earth 'likely' hottest in 2,000 years

* The Exploratorium's Global Climate Change website.

* U.S. Environmental Protection Agency Global Warming Site

* Conservation Science Institute Ocean initiative -- Check out their Global Climate Change page.

* The Role of the Sun in Climate Change by Douglas V. Hoyt and Kenneth Schatten; Oxford University Press, 1997. ISBN: 0195094131

* Web-based student activities. Designed to help students investigate global warming using web-based resources.

* The NASA Goddard Institute for Space Studies (GISS) Includes information about current research related to global warming.

* Global Warming- Overview of global warming (NASA Earth Observatory).

* Primate evolution linked to global warming says new study- New research suggests the ancient climate change fueled early primate evolution (mongabay.com).

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cliffs?