Greenhouse Gases And Global Warming

Do you believe that greenhouse gas emissions responsible for global warming?
What evidence makes you believe that? Or is it only in the media?
Otherwise, what theory you believe it?

Yes, the greenhouse gases which include carbon dioxide, methane and water vapor absorb heat from the sun and keep the earth warm.

If you look at our two closest neighbors: Mars has a very thin atmosphere during the day may be hot, but the Martian night is freezing, and not only because it is farther from sun, similar conditions exist on the Moon: Venus has a thick atmosphere of carbon dioxide and is very hot, it has an average temperature of 467 ° C, hot enough to melt lead.

The theory that increased concentrations of greenhouse gases responsible for global climate is very good, we know it happens. The main controversy over the theory of global warming is now on how much difference between man made CO2 is released. You may have seen the Al Gore movie "An Inconvenient Truth," in which he demonstrates the close corrole between CO2 levels and global temperatures over the last 400,000 years. I included a link for the chart in the source if you're interested. The connection is obvious, but Al Gore said wrong, he suggested that during the 400,000 years all levels of CO2 has increased over time, temperatures have also risen. Unfortunately, this was not correct, and that bad science undermined the reputation of a film it's very well done. In fact, CO2 levels have been shown to monitor the temperature, and not vice versa, meaning that CO2 levels on Earth heated pink. The temperature was the cause and effect was CO2, not vice versa.

This may seem contrary to the theory of climate change we know, but in truth, Al Gore did not lie, it was just too simplifying the process. In the past, warm and cold periods of the Earth corresponds to an eccentric orbit, to radically simplify the process: when the earth is closer to the sun, it warms up when it is farther away it cools, but those quirks are simply not large enough to account for the variation in temperature between ice ages and warm periods, so something else has been happening too.

As it turns out that something other greenhouse gas emissions, temperature increases slightly, due to quirks in a cycle of 100,000 years, this in turn releases carbon dioxide sinks, such as oceans and plant life. It is then increasing concentrations of carbon dioxide in the atmosphere that the strength of the global temperature increase during inter-glacial periods.

What happened over the last hundred years is that humans were actively emitting greenhouse gases without the initial need for the earth to warm. This causes the earth warms up, and before we know the natural carbon sinks will release their emissions too, is already the case in the Arctic permafrost is melting. The end result will be higher temperatures due to greenhouse gas emissions, but the cause of this delay will be humans, not eccentricities world.

A more detailed graph of temperature and CO2 levels for the last 130 years could be found in Figure 2 the second link I provided. It shows that CO2 levels have risen dramatically since industrialization began and the temperature has followed suit. There is no explanation of these orbital changes, the only reason we know about the man is the burning of fossil fuels.

The media tend to exaggerate and simplify what is actually a very complex process, but the basics are well understood and there is really no controversy at all in the scientific community about whether or not the happens, only how fast it goes and how it is difficult to obtain. greenhouse gas emissions, by definition, global warming, and we're releasing them faster than they have ever been published befor.