Can you guys please summarize about global warming?

Question

it's so confusing! okay

so i have couple of questions.

one is whats that invisible thigny that covers the earth so that some of the heat can't get back to the sun?

i need to know that

and what exactly is greenhouse effect?

bleh

and uhmm i know what global warming is

but im doing a science project and im creating earth as a shoebox and i cover it with food wrap because of the thigny

but i don't know what the name is! so please help me

Answer 1

Some gases ("greenhouse gases") let sunlight in, which warms the Earth, and then block that heat from leaving. That's the "greenhouse effect", and it's a natural thing, mostly caused by water vapor.

Man is making excessive amounts of greenhouse gases, mostly by burning fossil fuels, and making carbon dioxide. That causes the delicate natural balance to go out of whack and the Earth warms. That's global warming.

It won't be a Hollywood movie style disaster. Gradually coastal areas will flood and agriculture will be damaged. But it will be very bad. Rich countries will cope, but it will take huge amounts of money. In poor countries many people will die of starvation, but not all of them.

Most scientists say, in 20-50 years. But we need to start right now to fix it, fixing it will take even longer than that.

Really good website for more information here:

http://www.nrdc.org/globalWarming/f101.a...

Lots of numerical scientific data proving it real here:

http://www.globalwarmingart.com/wiki/Ima...

http://www.ipcc.ch/pdf/assessment-report...

Proof that most scientists think it's real and mostly caused by us here:

http://en.wikipedia.org/wiki/Scientific_...

http://www.sciencemag.org/cgi/content/fu...

Answer 2

1. The earth's atmosphere.

2. When sunlight reaches the earth it warms the planet and is re-radiated back into space in the form of infrared radiation. When the earth's atmosphere thickens (due to excess carbon dioxide, and everything else attributed to global warming for that matter) more and more of this infrared radiation is trapped inside the atmosphere - warming the planet. As the atmosphere continues to thicken, the planet continues to warm. This is the basic concept of the greenhouse effect.

Global warming is the increase in the average temperature of the Earth's near-surface air and oceans since the mid-twentieth century, and its projected continuation.

If we don't become eco-friendly as a planet and let this to continue to happen there are many consequences - sea level rising, increased natural disasters, etc.

See: http://en.wikipedia.org/wiki/Effects_of_...

I would also suggest watching Al Gore's film - An Inconvenient Truth.

Answer 3

* There is no "scientific consensus" on global warming

* Climate is always changing – with or without man

* The Medieval Warm Period was significantly warmer than temperatures today – and was a golden age for agriculture, innovation, and lifespan

* Most of Antarctica is actually getting colder

* Hurricanes are not getting worse – our tendency to build houses in their path is getting greater

* Many big businesses lobby for global warming policies that will increase their profits – and our costs

* The media only recently abandoned the "global cooling" scare

* The real agenda behind the "global warming" scare? A massive expansion of government control over the economy and our lives

Answer 4

i have one word to explain everything about global warming... nonsense

Answer 5

Think of a one way mirror:  It lets light through one way but not the other.  The important thing to remember about light is that it's a very wide spectrum, from radio waves to x-rays.  Greenhouse gasses such as carbon dioxide reflect infrared light but conduct visible light.  Visible light hits the Earth all day and heats up the Earth.  The Earth them glows infrared light all day and all night.  With no greenhouse gasses, that infrared light just goes into outer space, taking energy with it.  With greenhouse gasses in the air, that infrared light bounces back down to Earth and gets converted back into heat.  Obviously the more greenhouse gasses there are in the air, the more infrared light will be reflected back to Earth.

Answer 6

Highly charged phrase that causes a individuals to use such words has alarmists, deniers, nut jobs, liberal, right winged,skeptic, doubters, plus other colorful metaphors.

Answer 7

Top 11 Warmest Years On Record Have All Been In Last 13 Years

http://www.sciencedaily.com/releases/200...

ScienceDaily (Dec. 13, 2007) — The decade of 1998-2007 is the warmest on record, according to data sources obtained by the World Meteorological Organization (WMO). The global mean surface temperature for 2007 is currently estimated at 0.41°C/0.74°F above the 1961-1990 annual average of 14.00°C/57.20°F...

...Since the start of the 20th century, the global average surface temperature has risen by 0.74°C. But this rise has not been continuous. The linear warming trend over the last 50 years (0.13°C per decade) is nearly twice that for the last 100 years...

...2007 global temperatures have been averaged separately for both hemispheres. Surface temperatures for the northern hemisphere are likely to be the second warmest on record, at 0.63°C above the 30-year mean (1961-90) of 14.6°C/58.3°F. The southern hemisphere temperature is 0.20°C higher than the 30-year average of 13.4°C/56.1°F, making it the ninth warmest in the instrumental record since 1850.

January 2007 was the warmest January in the global average temperature record at 12.7°C/54.9°F, compared to the 1961-1990 January long-term average of 12.1°C/53.8°F...

Global 10 Warmest Years Mean Global temperature (°C) (anomaly with respect to 1961-1990)

1. 1998 0.52

2. 2005 0.48

3. 2003 0.46

4. 2002 0.46

5. 2004 0.43

6. 2006 0.42

7. 2007(Jan-Nov) 0.41

8. 2001 0.40

9. 1997 0.36

10. 1995 0.28

http://www.sciencedaily.com/releases/200...

Answer 8

read this

it should be helpful

and get Gore's book " An Inconvenient Truth"

http://en.wikipedia.org/wiki/Global_warm...

Answer 9

Global Warming Is Nature... Not US

The following was a 30 minute speech I delivered for school

DON'T BE AFRAID TO EMAIL ME AT [e-mail]

The following was a 30 minute speech I delivered for school

DON'T BE AFRAID TO EMAIL ME AT [e-mail]

I.  For a long time people have been looking through glasses that have foggy lenses of deception regarding global warming.  In the next couple of minutes I intend to show you a more accurate eye chart and update your prescription.

A.  Reasons for listening to my speech are very simple.  One of the main reasons is that Global Warming is nothing to waste your time on.  If it so important to the environment, then we would have done something for it by now.  Another reason that you should listen is that this could be a life changing speech that greatly effects every moment of your life from here on out.

I am 100% accurate in reporting my information.  I have done the research necessary to ensure that you are getting nothing but hard core facts.  For the past several weeks of my life has been dedicated to finding out information for my speech topic.  Nobody knows as much credible information on this topic as I do.

C. My point for this speech is to try and persuade you to see the light at the end of the dirty tunnel of humanities’ lies.

II.  Global Warming is the most debatable topic that was probably ever around.  You need to know this information.  If you don’t educate yourself properly on this topic you will live the rest of your life in fear of something that doesn’t exist.

A.  Global Warming is a natural cycle.  Everything about it is natural.  Carbon dioxide levels vary throughout time.  Humans can make little or no impact on the environment.

1.  Take a look at this chart taken from an online internet poll.  What do you notice from this?  There is a close tie between adults that believe in Global Warming and some that don’t.  As you can see the charts are pretty close.  There is about one person who doesn’t believe in Global Warming to two people who do.  This means that only 60% of the world believes in global warming.  My goal by the end of this speech is to have the 60% be persuaded that they are not believing in the accurate thing.  With the following facts, I am 100% sure that this goal is possible and will be achieved.

2.  Al Gore stated this quote in his movie “…The 10 hottest years ever recorded were within 15 years of today.”  Now this point is valid and true, but we have not been measuring the temperature or anything since the early nineteen hundreds.  Can we go down and see how the polar ice caps were doing in the early 1800’s?  We can not do that  because temperature was not recorded.  You may say that they guessed using carbon dioxide levels,  but whose to say that they are right?  I heard that scientific measures were not always accurate because they took a hundred year old log and did some carbon 14 testing on it.  Scientists thought that it was thousands of years old.  It was later proved to be younger after more tests were ran.  Whose to say that our method of discovering weather is right?   We have been measuring temperature for only a short period of time.  Earth right now is in a heating process.  Thousands of years ago we were cooling which is when we had an Ice Age.  Now we are doing the opposite and are starting to warm up before cooling again. Look at this political cartoon.  What is one thing that you notice?  I notice it being freezing then gradually getting warmer. As my next point is about to prove, we have no effect on the environment no matter what we do.

3.  In 1990 a volcano in the Philippines erupted violently.  It was by far one of the biggest explosions of the century.  We all have read about how volcanoes let off carbon dioxide, but did you know this… When the volcano erupted, it put more carbon dioxide in the air than all of humanity has ever produced…. More than humans have made since the creation of time.  All in just a matter of hours. Look at this picture.  See all of this carbon dioxide being put into the air?  While, with all of this there was no temperature increase or decrease at all… just some carbon dioxide level changes, but nothing major.  If volcanoes put off this much carbon dioxide with no effect, then how could we be doing this?  When all this happened, then how could you be persuaded that humans who produce fractions of that amount could impact the environment in fractions of the time.  Humans if we tried could not severely impact the environment.  It is just too big.  Even if we are letting some off, plants and other natural recyclers of Carbon Dioxide are just transforming them to oxygen.

4.  During World War II,  we dropped two nuclear bombs on Japan.  We spilled tons of harmful green house gasses into mother nature.  This includes  radiation, carbon dioxide, and carbon monoxide.  After all of that happened, again there was no effect to the environment that was found.  Hiroshima has been having radiation problems still, but there is no significant temperature problem.  Nothing humans do can severely change our environment.  We only occupy about 50% of the globe.  The other 50% is the ocean, ice caps, and land that is not suitable for humans.  How could two nuclear bombs not have an impact on the environment, but changing a light bulb in your house to fluorescent can save the environment?  It is just impossible that we could have an impact.    

5.  Another point is that if you look in your text book, I promise you that you will find these words… “When Washington was marching his troops, it was bitterly cold outside”  Bitterly cold means freezing.  I know that they didn’t have supplies but Virginia in the summer (which is when they fought) is warm.  As you can see by these charts, it was 106 degrees outside in the summer.  This is without humidity too.  Now when we look at this chart it shows us that the battle was fought in Yorktown.  There isn‘t much of a distance between Yorktown and Richmond, were this was recorded.  How was it bitterly cold a few hundred years ago when now it is normal?  The conclusion is that it is a natural cycle.  The cycle changes every several hundred years.  It was cold then, and now it is slowly warming up.  We have nothing to do with it.  This is perfectly natural for our environment to do.  We would like to believe that humans are the dominate species.  Have we ever thought to wonder if what we believe in is caused by nature?

6.  One of the most important factual information is still on our planet.  Greenland is one of the most misunderstood places around.  People like to believe that the reason that it got it’s name is because the settlers didn’t want people to move there so they called an icy land Greenland so that settlers would move their instead of Iceland were it really was green..  After I saw a show on the discovery channel,  I concluded that it was actually green.  When the first settlers went there,  they dined on grapes and cows.  I don’t think that I am mistaken, but how could a cow live on an icy land with nobody to feed it.  Grapes grow in warm environments which is not ice.  Greenland fits that exact description.  Also as you can see on this picture, there is still some green left in it.  All of it was green once, which proves that it once was green and now it is ice because of the natural cycle, it is starting to freeze.  Now Greenland is melting to start the process all over again.  In a few hundred years, Greenland will begin to freeze.

NOTE TO READER: FOR POINT 67-8 IT MAKES NO SENCE UNLESS POWERPOINT IS VISIBLE… THANKS!

7.  Ok…  Phoenix is known as a hot dry desert place.  You think that it keeps getting hotter and hotter here each summer.  Take a look at this display on the screens.  As you can see,  during the day the sun is radiating energy to a large city… lets call it Phoenix.  It does this all day until the sun starts to go down.  As you can see now,  the buildings are built up with radiation while the desert area barely got any radiation build up.  Now it is night and as you can see the buildings are radiating heat forming a heat bubble.  Now in Phoenix at night it is around 95 degrees.  That is because of the buildings radiating.  We are made of concrete and steel so we absorb heat.  Take a look over at the desert.  See how the temperature there is lower?  This is because it is not trapped in the heat bubble of radiation.

8.Many people relate global warming with long citywide droughts.  Like in Phoenix, we are in a drought.  There are many reasons why this is not caused by us. Have you ever watched the news and heard the following phrase “… and people of Chandler are getting pelted by rain, many individuals are putting up sand bags to protect their homes…?”  What this is saying is that small little cities are getting poured on.  Look at the power point and see why,  The big glob in the center is called Phoenix, Glendale, and Peoria.  Ok now imagine that we are in the middle of a storm.  The red indicates heavy rain and the yellow indicates moderate rain.  As you can see from this animation that I made,  the storm is going around Phoenix.  We are a giant blob and the storm is just simply avoiding us.  Smaller cities like Chandler and Mesa are being pelted by this continuous down pour.  So in smaller cities they may say, “We got rained on the most we ever have” and the airport were they measure the amount of rain says there were only a few drops of rain.  This proves that we did not cause the drought by carbon dioxide, but we did it by industrializing.  

9.  Global Warming is also just a political trap.  Who are the only ones who want to try and do something about global warming besides tree huggers?  Politicians do.  When somebody is running for office this makes a better point, I am going to save the world!  Who