Global warming

Global warming

 
Global Warming- I think people should do there homework on this matter
 
Posts  1 - 7  of  7
Global warming discussion
 
MyVoice
I think people should do there homework on this matter. Go back and research past phases of climate change. Humans are funny. Stop forgetting the past. History alwasy repeats itself.Climate Change has everything to do with the earth's spins, tilt's and mother nature.
           
 
Ranger0001
replied to: MyVoice
Replied To:  I think people should do there homework on this matter. Go back and...
Well Said. All of these people worried about Global warming are just stressing themselves out over nothing. They should be more worried about a meteor hitting the Earth than the climate changing.
           
 
jbarnes1
replied to: Ranger0001
Replied To:  Well Said. All of these people worried about Global warming are ju...
Lets not forget the great climate controller.....The Sun!!!
           
 
brontew
replied to: MyVoice
Replied To:  I think people should do there homework on this matter. Go back and...
Exactly. Those of us who have done our homework understand there is a correlation between the amount of greenhouse gases in the atmosphere and glacial periods or interglacial warming periods on Earth. In ice ages the amount of CO2 in the atmosphere declines. In the periods of interglacial warming scientists have found the amount of CO2 in the atmosphere increases. Ice core drills from Antartica taking ice samples over the last million years can measure the gases in the atmosphere over that time. In cold periods the amount of CO2 in the atmosphere has dropped to about 160 parts per million in ice age and rises to 280 in warmer periods. But since the industrial revolution it is now about 390 parts per million. The effect of greenhouses gases is in addition to the Milankovich cycles to which you refer.
           
 
babe007
replied to: brontew
Replied To:  Exactly. Those of us who have done our homework understand there i...
Cause of or effect of is the question.

vast amounts of carbon dioxide are present in water, principally in the deep oceans where the water is generally cool at depth.

If the oceans warm, the oceans will release a lot of carbon dioxide. If the oceans cool, they will absorb it from the atmosphere.

Other sinks of carbon dioxide include plant materials/biomass and rocks as carbonates. These are huge issues, particularly the carbonate present in the crust. When volcanos erupt through carbonate layers there are huge releases of carbon dioxide which sometimes dwarf what man is doing.

anthropogenic sources of carbon dioxide are burning of reduced carbon materials whether wood, grass, or refined oil products. A few major grass/brush fires in SoCal can release more carbon dioxide than years of the regions fuel consumption. Another source sometimes not considered is the carbonate rock consumed by acid vapors released in industrial processes or ore smelting.

I am not convinced "anthropogenic" contributions to the observed temperature data are the principal reasons. A careful look at the IPCC data raises serious questions. The selection of a start time frame that coincides with a solar minimum and an end time frame that coincides with a solar maximum is just inexcusable. The size of the reported temp rise in the reported time scale is not particularly statistically compelling in the context of changing temperatures in the past, even in the past several hundred years.

The IPCC report could have picked a start date like 1797, a very cold year because of solar subsidence and gotten twice the alarm. or the mid fifteenth century and gotten no alarm whatsoever.

No reason to call this a crisis.
           
 
Rossana21
replied to: babe007
Replied To:  Cause of or effect of is the question. vast amounts of carbon di...
To respond to your first statement I would like to say people have done their homework on this matter, for the past 50 years, since the environment started becoming a problem, scientists have been looking into the matter to try to understand why these climate changes are occurring. The history of the earth temperature has been researched and of course the climate of the earth has changed drastically over the years there has been ice ages and then longs periods of hot weather. These changes were caused by natural factors like volcano eruption, changes in the earth´s orbit and the amount of energy transmitted from the sun. The difference is now the climate is changing in a way never before seen and it´s being caused by human actions. Since the end of the XVIII century, starting with the Industrial Revolution human’s activities became more industrial and started polluting the air. These activities began to change the atmosphere´s composition causing a change in the earth´s climate.
Humans are conscious of the problem they are causing, which is the reason why so many actions have started to take place in order to protect the environment before it´s too late. Laws are being made in different countries and governments are doing programs like making recycle campaigns. Many associations have started doing actions; many people are trying to reduce their own carbon foot print and protocols have been made between different countries. For example the Protocol of Montreal was made to reduce the CFC´s emitted in the air because of the existing concern for the ozone layer.
So in order to conclude of course some of the changes are of Mother Nature but humans have definitely accelerated the pace, changing nature´s natural course. We have to act fast in whatever we can do in order to leave this place in good shape for the people that come after. Maybe it´s not a crisis yet but we have to take responsobility for what we´ve done before it become a crisis.
           
 
FJN100
replied to: Rossana21
Replied To:  To respond to your first statement I would like to say people have ...
I do not want to appear mean spirited. I must ask this question. Who was burning the fossil fuels,and what were they that caused the melting of the last iceage?