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Global Warming






How aware are you
What is global warming???
4%
 4%  [ 1 ]
Oh yeah, the ozone layer
18%
 18%  [ 4 ]
CO2 emissions
54%
 54%  [ 12 ]
ECO warrior
22%
 22%  [ 5 ]
Total Votes : 22

Lennon
This forum is to summarise all the facts about global warming mentioned in the previous forums. Needs to be put all together.
If you've any figures or facts then post them in.

Don't forget to vote (",)
S3nd K3ys
Lennon wrote:
This is the place.



No it's not...

S3nd K3ys
Lennon wrote:
any suggestions...?

Is the poll working for you...?


The poll is working, there's just a million other threads discussing the topic already. Here's a couple to keep you busy for a while.

http://www.frihost.com/forums/vt-23346.html

http://www.frihost.com/forums/viewtopic.php?t=22828&highlight=global+warming

http://www.frihost.com/forums/viewtopic.php?t=9466&highlight=global+warming

http://www.frihost.com/forums/viewtopic.php?t=11727&highlight=global+warming

http://www.frihost.com/forums/viewtopic.php?t=14071&highlight=global+warming

http://www.frihost.com/forums/viewtopic.php?t=19163&highlight=global+warming

http://www.frihost.com/forums/viewtopic.php?t=21000&highlight=global+warming
SunburnedCactus
Oh my god, you burned his ass. You burned his ass good! Laughing [/b]
Garg
Has anyone read the last M. Crichton book ? "The State of Fear". I don't really agree with his point of view, but at least it pushes you to ask questions about what we're told about global warming !

Basically, what the media say and what the scientists say are a world appart ! Is is true ?

If you're interesseted by the subject, read the book !
Lennon
Yeah, there's so much we don't know right know.
I seen a doc on discovery pointing out that 1/3 of the world's CO2 is trapped in the rainforests, waiting to be released by deforestation.

I think with the price of oil doubling per year as oil runs out, CO2 emissions will soon be going down...
Lennon
Quote:

LONDON (Reuters) - German scientists have discovered a new source of methane, a greenhouse gas that is second only to carbon dioxide in its impact on climate change.

The culprits are plants.

They produce about 10 to 30 percent of the annual methane found in the atmosphere, according to researchers at the Max-Planck Institute for Nuclear Physics in Heidelberg, Germany.

Quote:
Posted: Sat Jan 14, 2006 11:27 am Post subject:

--------------------------------------------------------------------------------
I don't say human causes all the warming processes of earth. Nature already produces a lot of CO2 and other greenhouse gases. On the other hand, one has to consider that these gases were produced before human existed, and also that we add an extra to all these quantities, be it small or big. One would say an augmentation of 3% of CO2 levels on the globe will not change anything. But how can one be sure? Any tiny modification to the fragile balance of this world can have unpredictable results.

In the waiting, in Canada, Vancouver has had some 26 consecutive days of rain. In Manitoba, some native communities can not get any more supplies due to their ice roads being all melt. In Quebec, while the temperatures should turn around -15C, -20C, we have had up to 16C in some more southern regions, and 6C where I live, a bit more north. This is absolutely abnormal.

---------------------------------------------------------------------------------

FACT: The earth was cold, it seems to be warming up.
FACT: The earth is a complicated ecosystem
FACT: It's going to change, whether we like it or not

But the plant theory is perfectly interesting all by itself.


Quote:
Technically, facts do not exist and everything is a theory. From what we actually call facts and theories though, the ice age would be classified as theory. But with the research done they are about 99.9% sure it happened in such an order, the only thing scientists cant agree on is the timespan in which it happened. Some say 100 years, some say over a 1000.
Quote:
Anthrogenic warming seems likely but is probably not enough to offset non human factors. We should actually be at the end of a 13,000 year warming or interglacial period which would seem to suggest that the human factors promoting warming would be a good thing. It seems foolish however to make that kind of assumption. Additional research is needed.
Quote:
- CO2 is at around 380ppm. That is around 100ppm than it has been in any of the ice-core samples, which are all below 280ppm and represent readings from the past 600,000 years.

- CO2 is steadily rising. If you google the Keeling Curve, you will see the way it increases steadily year in, year out. It's not a dramatic shift, but a gradual one. This rules out (for me at least) things like volcanic erruptions, which would cause abrupt rises.

- The increase in CO2 starts in the past few hundred years. It seems from our records that in the past few hundred years we have changed by the amounts normally which normally take hundreds of thousands of years.

- You can look at abundance of the isotopes of Carbon in the atmosphere, and from these studies it is estimated that 1/4 of the CO2 in the atmosphere was produced in industry. That amount, approximately corresponds to the excess we see in the atmosphere.
Quote:
Well analyzing 1/1,000,000,000 of the total data will never give you a accurate trend. It's narrow minded for scientists to ignore the cataclysmic events of earths past trends. The earth used to be a hot ball of molten rock, then it was pretty frozen in certain regions...then it warmed up a tad. Mt. St Helens annual output of toxins dwarfs the quantity of toxins humans output. There is alot of data showing that other regions of the plant are cooler and wetter than previous years so the warming cannot be "global".
Quote:

Methane is a GREATER greenhouse gas than CO2, but comprises less than a hundredth of a percent the density that CO2 does. of course plants produce all the methane.
As far as CO2, we don't need to look at "trends" to know that global warming caused by humans is taking place. All we need to do is look at the amount of CO2 in the atmosphere, and look at how much of it is put there by humans.

FACT: CO2 is a powerful greenhouse gas.

FACT: CO2 levels are rising faster than the Earth can deal with it.

FACT: Human combustion of fossil fuels are the reason for this rise.
Quote:

Scientists have enough prior knowledge to believe that this is a natural cycle (again, which we may be speeding up). They theorize that the heating could melt the ice caps and put too much fresh water into the ocean.

The salt/fresh water balance in the ocean is what keeps the currents moving, the rising and sinking of the water, and too much fresh water could shut the currents down, thus sending the world into an ice age. It's possible, but it probably won't happen in our lifetimes.
Quote:
1)As for your facts. CO2 levels ARE higher than they were 50 years ago. TRUE. (Don't know about 1,000 years ago, nobody checked)
2)Rising faster than the Earth can deal with it. FALSE (We don't know how the earth will deal with it)
3)Humans caused it. (FALSE We just don't know. Core samples of permafrost at the north pole have shown that CO2 levels, temperatures at the pole, and the integrity of the ozone layer have been fluctuating for thousands of years.
Someone said earlier:

Quote:

Here is the CO2 record for the last 400,000 years:

http://en.wikipedia.org/wiki/Image:Carbon_Dioxide_400kyr.png
Quote:

The USA is responsible for 25% of the production of CO2 on the planet, while it only has 4% of the population.


Quote:

Besides, the Middle East oil is running out. That is the reason Iran made the unheard of decision to close 50,000 villages and move them into large cities. They know their oil is running out (I keep reading the year 2020 or so as a point of decline for Iranian oil output) and once it's gone they have absolutely ZERO economy. The other Middle East countries are in a similar situation.
Quote:

The USA EU Countries China Total
Population of world: 4.6% 6.3% 21% 31.9%
CO2 Emissions: 24% 14% 13% 51%
Quote:

Lennon
Quote:
According to tree ring and core data, the temperature dropped suddenly around 1550 and stayed that way until 1850, this period had the coldest temperatures in the previous 8,000 years. Greenland was named Greenland because prior to 1550 it was green. Global Warming alarmists pick 1880, thirty years after the most brutal cold spell in history ended, as the target temperature for the Earth

Quote:
you find a climatologist that concedes that volcanic activity has been exceptionally active for the last 25 years, that they say that CO2 from volcanoes actually helps cool the Earth. (High atmosphere CO2 prevents entry of heat.)
Quote:
the Artic was tropical up until 36 million years ago, why is it that plugging in the CO2 data for time period into climate models results temperature way below what was expected
Quote:
there is a direct correlation between sunspots and global temperatures
Quote:
Record temperatures were all set in the 1930's and 40's, the decadal oscillation people say that it will be as cold as it was in the 1960's early '70s within 30 years because of the expected sunspot cycle.
Quote:
do know however that since dinasaurs had 30% of their air as oxygen since we have dut all the trees down the % of our air is only 20%.
Quote:
Stinger
i know global warming is affecting Antarctica nad alaska pretty badly. Ice melting very fast. In alaska it causing cracks to appear in the roads, and in Antarctica its melting super sonic ninja style speed
beatmasta601
Wtf is that :p
Lennon
Don't forget the eskimo's are petitioning desperately to save their industries coz the Ice is running out.

But there's controversy concerning CO2 levels.
gonzo
S3nd K3ys wrote:
Lennon wrote:
This is the place.



No it's not...




Laughing Laughing Laughing Laughing
nik
Quote:
Ice is running out
Laughing Laughing Laughing Laughing



it's not that critical yet they still got enough ice xD
riv_
Yeah, it is getting significantly warmer in the northern hemisphere. Not surprising, remembering what most of us learned in science class regarding the tilt of the earth on it's axis of rotation, and it's path around the sun etc. etc.
Anyone checked out what's happening in the extremes of the southern hemisphere lately??? Is it a little different?

Quote:
The eccentricity, axial tilt, and precession of the Earth's orbit vary in several patterns, resulting in 100,000 year ice age cycles of the Quaternary glaciation over the last few million years. The Earth's axis completes one full cycle of precession approximately every 26,000 years. At the same time the elliptical orbit rotates, more slowly, leading to a 22,000 years cycle in the equinoxes. In addition, the Earth's tilt relative to the Sun changes between 21.5 degrees to 24.5 degrees and back again on a 41,000 year cycle. The Earth's axis today is tilted 23.5 degrees relative to the normal to the plane of the ecliptic.
prongs_386
nik wrote:
Quote:
Ice is running out
Laughing Laughing Laughing Laughing



it's not that critical yet they still got enough ice xD

It doesn't matter if it's not critical now, it will be if we don't do something about it, and oil running out is probably a good start as we are forced to look at new ways, in which id say would definately be more environmentally friendly
Frag
Global warming needs to be sorted, and sorted now really otherwise it will jsut get worse, no thanks to countries who dont want to cut down on there CO2 emmisions. ***cough***USA****cough***
Lennon
There are four types of global cooling and global warming.
Three of these are geo-physical, and the fourth is caused by the living environment.

The geo-physical periods are:
1:) the tilt of the earth changes every 40,000 yrs
http://www.livescience.com/forcesofnature/050330_earth_tilt.html
2:)Wobble every 20,000 yrs
3:)Eccentricity every 100,000 yrs

The living environment has it's own defined parameters, from CO2 and methane releases from animals/humans/plants to more complex fossil fuel emissions, and there's also a natural recovery process where the greenhouse gasses are reduced naturally in the upper atmosphere.
Lied
Even if we cut down the overemmition, it will take about 50 years for the earth to naturaly recover. So every time a "natural" disaster such as a tornado hits, think twice please.
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