Global Warming Part 2
from 
JoeUser Forums
JoeUser Forums
I am finally becoming convinced that this is a real, man made + natural phenomenon. I have become convinced through making an in depth analysis, and seeing how science rather then politics or politicians are providing the tools to conclude that a potentially serious global warming series of events and trends is occurring.
The first bit of evidence you need to know when researching this, is understanding the "actual greenhouse greenhouse effect" and the "greenhouse effect of the Earth".
http://earthguide.ucsd.edu/earthguide/diagrams/greenhouse/
Heat which is energy is transferred in 3 ways, conduction convection and radiation.
In a greenhouse the greenhouse gets heated from the sunlight. This light pours inside and warms the ground inside the greenhouse, which in turn warms the air just above it, this air through a process called diffusion which is when molecules move from an area of greater density to an area of lower density, fuels convection. Warmer air is less dense and cooler air is denser, cooler air being denser falls, while warmer air rises. Because the greenhouse is enclosed, it is a closed system, just like the Earth, however inside the Earth's closed system much more convection is occurring and the majority of heat that makes it into the Earth's system is re-radiated back at the planet.
The energy that travels through the vacuum of space is all radiation. On the Earth most of this energy is transferred via radiation and convection. Inside a greenhouse, sunlight penetrates the glass or plastic covering, via radiation. The glass or plastic is impermeable meaning that the molecules in a gas form cannot penetrate it and are trapped. Since they are trapped, the energy remains largely trapped, this is what increases the temperature inside the greenhouse.
On the Earth it works largely the same way, sunlight penetrates the atmosphere and is trapped. Some of it is re-radiated but a significant majority of that energy that gets into the system on Earth is drives out weather and climate.
The Earth's average surface temperature is about 33°C warmer than it would be without the greenhouse effect.
http://en.wikipedia.org/wiki/Greenhouse_effect
http://en.wikipedia.org/wiki/Image:Greenhouse_Effect.png
When you increase the concentration of these greenhouse gases in the atmosphere, which is occurring yearly, and has been since the industrial revolution, but not at the same magnitude as presently, the ability of the atmosphere to act as a stronger radiator of energy back into the Earth's system of energy containment is increased.
In the last 50 years the amount of greenhouse gases has steadily increased, measured in parts per million, is not at the highest level in recorded history.
We know that the rate is high because we can measure, and independently verify preserved samples, of ice, taken in the antarctic, which match up very consistently across the continent, as far back as about 800,000 years. The ice itself cannot be measured by temperature, as it doesn't remain the same temperature as it did since then, however it has remained a solid since the time, as evidence by the layers or freezing visually identifiable.
These layers, when measured for "greenhouse gases" show very consistent patterns, which correlate directly with temperature. As the presence of greenhouse gases increases the temperature of the climate increases, in direct proportion. This is important because it gives scientists the ability to accurately predict the trend that is is increased greenhouse gases present in the system, means increased average temperature.
Why is increased average temperature a concern? It has to do with raising sea levels, because of the polar ice melting, although very slowly, it is occurring. What happens when land masses are no longer covered by snow and ice, is very similar to what happens in a greenhouse, that landmass, is heated by radiation from the sun, and the air is warmed, and spreads out, further increasing the rates of convection and re-radiation of the energy from sunlight already trapped in the atmosphere.
Science as of yet, has no way of controlling either the amount of sunlight entering the Earth's atmosphere, or speeding up the process of removing the excess energy in the atmosphere, or reducing the amount of greenhouse gas emissions that are being produced and leading to the increased rate of energy accumulation inside the Earth's system.
The first bit of evidence you need to know when researching this, is understanding the "actual greenhouse greenhouse effect" and the "greenhouse effect of the Earth".
http://earthguide.ucsd.edu/earthguide/diagrams/greenhouse/
Heat which is energy is transferred in 3 ways, conduction convection and radiation.
In a greenhouse the greenhouse gets heated from the sunlight. This light pours inside and warms the ground inside the greenhouse, which in turn warms the air just above it, this air through a process called diffusion which is when molecules move from an area of greater density to an area of lower density, fuels convection. Warmer air is less dense and cooler air is denser, cooler air being denser falls, while warmer air rises. Because the greenhouse is enclosed, it is a closed system, just like the Earth, however inside the Earth's closed system much more convection is occurring and the majority of heat that makes it into the Earth's system is re-radiated back at the planet.
The energy that travels through the vacuum of space is all radiation. On the Earth most of this energy is transferred via radiation and convection. Inside a greenhouse, sunlight penetrates the glass or plastic covering, via radiation. The glass or plastic is impermeable meaning that the molecules in a gas form cannot penetrate it and are trapped. Since they are trapped, the energy remains largely trapped, this is what increases the temperature inside the greenhouse.
On the Earth it works largely the same way, sunlight penetrates the atmosphere and is trapped. Some of it is re-radiated but a significant majority of that energy that gets into the system on Earth is drives out weather and climate.
The Earth's average surface temperature is about 33°C warmer than it would be without the greenhouse effect.
http://en.wikipedia.org/wiki/Greenhouse_effect
http://en.wikipedia.org/wiki/Image:Greenhouse_Effect.png
When you increase the concentration of these greenhouse gases in the atmosphere, which is occurring yearly, and has been since the industrial revolution, but not at the same magnitude as presently, the ability of the atmosphere to act as a stronger radiator of energy back into the Earth's system of energy containment is increased.
In the last 50 years the amount of greenhouse gases has steadily increased, measured in parts per million, is not at the highest level in recorded history.
We know that the rate is high because we can measure, and independently verify preserved samples, of ice, taken in the antarctic, which match up very consistently across the continent, as far back as about 800,000 years. The ice itself cannot be measured by temperature, as it doesn't remain the same temperature as it did since then, however it has remained a solid since the time, as evidence by the layers or freezing visually identifiable.
These layers, when measured for "greenhouse gases" show very consistent patterns, which correlate directly with temperature. As the presence of greenhouse gases increases the temperature of the climate increases, in direct proportion. This is important because it gives scientists the ability to accurately predict the trend that is is increased greenhouse gases present in the system, means increased average temperature.
Why is increased average temperature a concern? It has to do with raising sea levels, because of the polar ice melting, although very slowly, it is occurring. What happens when land masses are no longer covered by snow and ice, is very similar to what happens in a greenhouse, that landmass, is heated by radiation from the sun, and the air is warmed, and spreads out, further increasing the rates of convection and re-radiation of the energy from sunlight already trapped in the atmosphere.
Science as of yet, has no way of controlling either the amount of sunlight entering the Earth's atmosphere, or speeding up the process of removing the excess energy in the atmosphere, or reducing the amount of greenhouse gas emissions that are being produced and leading to the increased rate of energy accumulation inside the Earth's system.
