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Originally posted by jakyll
1)The atmosphere is only 0.04% carbon dioxide, of which only 3% stems from human activity. Therefore, human activity cannot create global warming stemming from carbon dioxide, though natural causes of global warming certainly can exist.
5)Only around 380 parts per million of the atmosphere is carbon dioxide.Only 3% of the CO2 results from human activity.Only about 2-5% of the infrared radiation can be absorbed by a greenhouse gas, as shown by the IR absorption spectrum, which consists of a narrow band of frequencies.The amount of CO2 in the atmosphere is not determined by production, because it is regulated by the oceans. Cold oceans absorbs more, and warm oceans release more back into the atmosphere.The 30% increase in atmospheric CO2 over the past century indicates oceans heating (due to other causes), and it is too minuscule to be relevant. It is an indicator, not cause, of oceans heating.
6)Air has a much lower heat capacity than water, which means oceans can heat the air, but the air cannot significantly heat the oceans.Water in the air is a greenhouse gas which swamps the others. It is about a hundred times more prevalent than CO2 in clear air, and millions of times more significant on a cloudy day. Yet moisture only changes temperatures about 10-20 degrees on a cloudy day. This means CO2 must be changing temperatures less than 0.000001 degrees all of the time.
7)When el Nino heats the Pacific, CO2 increases in the atmosphere; and after El Nino, it normalizes. It wouldn't normalize if oceans were not reabsorbing the CO2. And if oceans can reabsorb that CO2, they can absorb any other CO2.Plants desperately need more CO2 to grow on. Their growth increases substantially when more CO2 is provided. The oceans had to be large to aquify the planet, but then they absorbed too much CO2 for good plant growth.
Water vapor is a a greenhouse gas which is far more significant than carbon dioxide, because there is about a hundred times as much of it in the air
Originally posted by jakyll
The earth gets hotter and colder on its own,it does not need mankind to do it.What humans have put it into the atmosphere is nothing compared to what the earth does to itself.
Volcanic activity alone releases about 130 to 230 teragrams (145 million to 255 million tons) of carbon dioxide each year!! Now think of how many volcanoes have erupted just in recorded history,then compare that pollution to our output.
The last great ice age started to recede between 14,000-10,000 years ago,from that very moment the earth started to get warmer!!
Can you blame man for that??
If you understand how ice ages happen,you will understand why they recede.Mankind could stop polluting altogether,but it will not end the cycle of the earth.History has shown many times that without human interference this planet has gone through great periods of change,and it will continue to do so!!
Originally posted by jakyll
I'm just trying to get people to see,that yes we pollute,but we have only done so on a global scale since around the time of the Industrial Revolution,a few 100 years! Compare that with nature's 100's of 1000's of years!and you wonder why some people are blaming mankind only.
by melatonin
Although, I will say I'm not a 'catastrophist' or 'alarmist'. I don't know whether our effects will be really catasthrophic, I think we will be taking big risks if we ignore the science, however.
Science 24 March 2000:
Vol. 287. no. 5461, pp. 2225 - 2229
DOI: 10.1126/science.287.5461.2225
Prev | Table of Contents | Next
Research Articles
Warming of the World Ocean
Sydney Levitus, * John I. Antonov, Timothy P. Boyer, Cathy Stephens
We quantify the interannual-to-decadal variability of the heat content (mean temperature) of the world ocean from the surface through 3000-meter depth for the period 1948 to 1998. The heat content of the world ocean increased by ~2 × 1023 joules between the mid-1950s and mid-1990s, representing a volume mean warming of 0.06°C. This corresponds to a warming rate of 0.3 watt per meter squared (per unit area of Earth's surface). Substantial changes in heat content occurred in the 300- to 1000-meter layers of each ocean and in depths greater than 1000 meters of the North Atlantic. The global volume mean temperature increase for the 0- to 300-meter layer was 0.31°C, corresponding to an increase in heat content for this layer of ~1023 joules between the mid-1950s and mid-1990s. The Atlantic and Pacific Oceans have undergone a net warming since the 1950s and the Indian Ocean has warmed since the mid-1960s, although the warming is not monotonic.
Originally posted by jakyll
Another thing that has a huge impact on our planet is the sun,especially solar flares.Last year NASA recorded 9 gigantic flares and 7 of them hit the earth directly!
Many destructive weather patterns can be linked not just to the earth itself,but also to a solar flare hitting us.
Originally posted by jakyll
I think the problem right now is,most people only know from what they read in the paper or watch on the news
Originally posted by jakyll
Thanks for the links,hadn't had a chance to look at them properly yet,but will do.
Found an interesting page and web site,which you can have a look at if your interested.Talks about many things,not just global warming.