What is the basis for the theory of man made global warming/cooling?

Question

What should the normal temperature and weather patterns be?

How fast should they be changing and in what way?

The Arctic Ice that is said to be melting, should it not melt or be expanding?

How does CO2, that is heavier than most other gasses in the atmosphere, get above other gasses in the atmosphere that are lighter?

So why is it happening faster on Mars?

Answer 1

There is no normal temperature, we've had ice ages and warm periods. The earth began as a violent and extremely hot globe. We can speculate about what the ideal temperature is for humans but it does not mean that this temperature is ideal. The ideal temperature for woolly mammoths was during the ice ages, the ideal temperature for thermophiles is 80 to 100 degrees. It is time people realized that the earth is not our pet, it does not conform to us we must conform to it.

The ice caps have melted and expanded greatly over the years, we have had ice ages where the ice from the poles reached far into America. This is all part of natural heating and cooling trends that the earth goes through.

Answer 2

The normal temperature should be just under 14 degrees Celsius, it's actually just under 15 now. The natural rate of change is 0.0005 degrees C per year (based on the 18,000 years since the last ice age), the current rate of change is 0.0156, more than 30 times as fast as the natural rate.

Some of the Arctic ice melts and freezes annually, in recent years the rate of thawing has far exceeded the rate of freezing with the result that even in the depth of winter the ice cap is considerably smaller than it used to be.

Explaining the CO2 thing is a bit more complicated - all the different gases swirl about in the atmosphere, it's sometimes a bit confusing looking at some of the diagrams that explain the greenhouse effect as they seem to suggest a 'blanket' round the earth high up in the atmosphere - it's not as straightforward as this. Basically all atoms and molecules of gas are exceptionally light and can easily float - a speck of dust or particle of smoke is massive compared to a molecule of CO2 but still manages to blow about in the air due to movement of the air masses.

Answer 3

The absolute basis for all this is money. Money for scientific grants to study ice, atmospheric gases, warming, cooling, rising ocean levels, falling ocean levels, warmer ocean water, slowing ocean currents, more clouds, more ozone, more of this and less of that.

There is nothing but self interest driving all this. The more you find "wrong", the more money you need for research. Then there will be money spent for "the fix".

You can't blame this on one group of people or political party. It's just our system of how stuff works.

Answer 4

that is 4 questions ,i will go for the first one

are We responsible ?
or is it God who wants to punish?
or is it Gaia who wants to clean some parasitic infestation?
who cares ? that is not important any more

WHAT IS -is that we are gonna be in trouble

The Earth has many problems because of man
this is undeniable ,how much we are responsible for Global warming is debateble ,But there is a definate change in Global temperatures that is affecting nature in a bad way.

this text only covers some aspects of Climate change ,i.e.effects of deforestation and subsequent man made desertification ,because of irresponsible farming using chemicals ,over pumping carbon aquiferrs,over grazing and deforestation

water and air polution such as caused by
industrial contamination ,the contaminating effects of the cities(the internal combustion engine) ,are other stories,

and all of these are also man made ,such as the high industrial chimneys pumping contamination into the clouds and the burning of tires,some of this polution has been found in the ice in the polar regions

there are natural cycles in the planets life
but a lot is influenced by mans existance ,and this is increasing with overpopulation,putting strains on Natural resources and increasing contaminations as well as destructions of essential componants the ensure living conditions for all life forms

the thinner ozone layer helps to speed this up.and this is caused mainly by air polution ,also as a result of mans actions

in North Africa,India,Mexico ,millions of people are effected by land loss and desertification and some have died as a result,

And now many animals are becoming sick because of changes in temperature ,
vital links in the food chains are disapearing affecting other species further along in the chain

90% of the feral (wild) bee population in the United States has died out.

In the Netherlands bee diversity is down 80 percent in the sites researched, and "bee species are declining or have become extinct in Britain."

wildflowers that depend on pollination have dropped by 70 percent

we are witness to a mass exstinction ,for the first time since the dinosaurs, of the earth's estimated 10 million species, 300,000 have vanished in the past 50 years. each years, 3,000 to 30,000 species become extinct.

everything is happening so fast it is not possible to monitor things any more.

,the Sahara is growing by 7 kilometers a year
and most of the desserts we know are a results of mans actions ,and they are increasing ,not getting less ,in the dinosaurs days ,there were few desserts.

collectively this planet is drying up ,

each degree rise in temperature means 10%crop loss

and there is less and less water (because of deforestation),to irrigate this production ,
and there are less and less farmers to do it..
Arable lands and their farms are lost all over the globe. Many farmers sons abandon farming and head for the cities.

Northern China is drying up, what once were millions of food producing people, are now hungry refugees ,running for their lives from the all consuming dust storms.
This will have a great effect on world food prices when they start buying at what ever cost, to feed their people.

The farmers that are left have to feed some 70 million more people than the year before but with less topsoil.

Over the last half century,
Population growth & rising incomes have tripled world grain demand from 640 million tons to 1,855 million

In the near future the global farming community will not be able to feed every body ,food prices will continue to rise. .

RISING SEAS
The northpole is melting ,and we will know it without ice in our life times.
this does not affect the sea level because it is ice that is already in the water.but the melting ice from Green land and the south pole ,are another matter

here are a 100 ways to help
http://www.eco-gaia.net/forum-pt/index.p... Source(s) http://www.greenpeace.org/international/...

http://news.bbc.co.uk/2/hi/science/natur... Source(s) Lester E Brown is the director and founder of the global institute of Environment in the United states .he has compiled a report based on all the satalite information available from NASA,and all the information that has
come from Universities and American embassies WORLD WIDE ,
his little book--a planet under stress , Plan B has been trans lated into many languages and won the best book award in 2003