What is global warming and the greenhouse effect?

Global Warming is when greenhouse gases from the sun get caught in earths atmosphere causing the earth's temperature to rise.

Three gases are:

Carbon Dioxide

Nitrous Oxide

Methane

Three facts about Global Warming:

Has been increasing the temperature of the earth since the mid- twentieth century.

It is melting ice bergs in the south pole leading to the extinction of polar bears and maybe penguins.

Its people who started this problem because we manipulated our enviorment too much, in bad ways.

Three Uncertainties about Global warming:

How to make it go away?

When did it start?

Why did it actually start?

I don't know, I just made up questions.

Global warming is a real threat. Its the biggest enviormental issue ever. This can make a whole species of animal go extinct, make water levels rise drowning islands. It will kill many people, not now but in future generations, its almost like we are setting a death sentence to the earth and maybe even killing the people of the future. Also people may say humans did not begin it, but we did. All the machines that run on gas and inorganic stuff. We should switch our mode or getting energy, there are many ways.

SAVE THE PLANET!

The "greenhouse effect" is the phenomenon in which greenhouse gases block the long wave (heat) energy emitted by the Earth after the sun warms the planet. This has been known since the 1800s and the effect makes the planet comfortable for life as we know it. It increases the earth's temperature from about 0F (-18 C) to 59F (15 C). This is known. Orbital cycles are the main drivers of the radical changes that cause ice ages and solar cycles have an impact also. Solar Flare notes that historically, as the planet gets warmer (a result of orbital factors), CO2 concentrations increase. This is the correlation between CO2 and mean global temperature. It is a strong correlation but does not prove causality. However, we see there is a relationship. The historic rise in CO2 was due to the increase in the decay of biomass. As it cools down, the decay process slows. This is why people use refrigeration to preserve foods - it slow the decay rate. This is known. Currently, CO2 levels rise in the atmosphere from the burning of fossil fuels and the reduction in plants to convert CO2 to biomass. The increase in CO2 concentrations is from burning fossil fuels. Scientist can directly measure this. We know there is a relationship between temperature and CO2 concentrations, and that CO2 prevents some long wave radiation from escaping into space, warming the atmosphere. We can measure in the lab how much changing CO2 concentrations influences the air temperature, but this is tougher in the field because of all the interactions (with plants and oceans for example) there are. The basic theory is that as CO2 and other greenhouse gases increase, this will cause a warming of the atmosphere. The mean global temperature has risen on average about 0.7 C. It doesn't sound like much but averages "mask" extreme variation, and the time frame this has happened (150 years) is some of the fastest change we think has happened. Since 1998, we have had 8 of the warmest years on average since record keeping started. This is fact. We would not expect this from a random event (i.e. in a world which was not warming). The links below gives the basic information.

I Strongly recommend you research any ones answer before you actually start your project. For starters polar bears don't live in the south pole, they live in the north.

Global warming is natural, just as global cooling (ice age, little ice age, the cooling of 1970s). It only becomes scary when environmentalist and the media claimed that global warming will doom us all. It is true that if you count all of mans mistake such as pollution, waste, Co2, etc.. we are doing nothing to help but, don't let anyone full you. Remember that there are always two sides to the story and any real scientist regardless of there profession will tell you that, there is always room for debate! But, for some reason all Al Gore and the rest of the liberals say “the Debate is over.” If they are right, what do they have to lose? Think about that.

Something you should really take into consideration is the sun's activity, volcanic activities, earth quakes and plate tectonics.

If you continue to search for answers you get a better understanding on what global warming really is. Look at every ones answers and then look at the references below. Or look up, the global warm scam, global warming hoax, the global warming swindle, etc and you will see the vast difference of opinions.

Give it a try and see if you still believe that global warming is cause by man.

Good luck!

Al Gore says to save energy, yet his home uses 22x more energy per year than the average American's home.

The polar bears? They are increasing rapidly.

And in history there have been cool and warm periods. The cool periods have killed off twice as many people as warm periods.

As for C02, the more PPM added to the atmosphere, the less effect on TEMPERATURE it has. However, the C02 increases have greatly helped the world's food supply.

Global warming measures have killed as many people as the Iraqi war, due to starvation because we have been using ethanol to fuel our cars, not feed our hungry. So how many people are we willing to kill off to solve something that isn't even a problem?

Also, "majority" of scientists believing in global warming doesn't make it true. And if a majority believed the sun will explode tomorrow, it doesn't mean it will happen. Science is not a democracy.

Please read my second source, the Skeptic's Handbook. It's quite informative.

The greenhouse effect is the humidity holding in more heat in the lower atmosphere than dry air can retain.

There is only one greenhouse gas and that is water vapor that has been evaporated from oceans, lakes and rivers. The other gases that have been called greenhouse gases will only retain heat if they are contaminated with humidity. So because they do not retain or block heat on their own without humidity they can not truly be termed greenhouse gases.

Global warming as promoted requires co2 and methane to be considered stand alone greenhouse gases because the suppositions that the AGW theory is built on falls flat if these two atmospheric gases do not retain heat on their own.

None of the precepts and suppositions that AGW is based on stand up to any form of careful scientific examination. They will only withstand peer review if the reviewer does not apply scientific method to the review.

The Amazing Story Behind the Global Warming Scam

http://www.kusi.com/weather/colemanscorner/3857474...

Scientists sign petition denying man-made global warming

More than 31,000 scientists have signed a petition denying that man is responsible for global warming. http://www.telegraph.co.uk/news/worldnews/2053842/...

Greenhouse effect, basic explanation:

http://science.howstuffworks.com/question746.htm

http://earthguide.ucsd.edu/virtualmuseum/climatech...

Three greenhouse gasses:

Water vapor, carbon dioxide, methane.

http://www.epa.gov/climatechange/emissions/index.h...

Three facts:

-CO2 levels are currently 38% higher than they were at the beginning of the industrial revolution:

http://cdiac.ornl.gov/trends/co2/graphics/Mauna_Lo...

-We have warmed by around 1.3 F since the beginning of the industrial revolution:

http://data.giss.nasa.gov/gistemp/graphs/Fig.A2.lr...

-97.4% of climatologists agree that CO2 is the primary cause for this warming:

http://tigger.uic.edu/~pdoran/012009_Doran_final.p...

Three uncertainties:

-How much CO2 humanity will emit

-The strength of feedbacks in the climate (clouds, currents, forests, water, etc. etc.)

-Glacial flows on Greenland (very important for estimating sea level rise)

its fake

scientists made it up to scare us

and its a natural phenomenon the world is going to get hot then go into an iceage they are just trying to scare you

look on google && do ur own project!!!!

the earth.

I AM NOT JOKING