# Logical steps of climate change

• random39a
In summary: No, Boyle's law just has to do with the pressure vs volume, and assumes that the temperature is constant. The gas law involving pressure and temperature is Gay-Lussac's law, which states that the ratio of the pressure over the temperature is the same before and after heating/cooling a gas.In any case, those gas laws are not valid when the number of gas molecules is changing, such as right after the tablets are dropped into the water and begin to fizz. You would have to look at the system once the number of gas molecules reaches a steady state or use another gas law (or combination of laws) which is more... accurate?
random39a
There are two ideas:

(1) C02 is increasing.

(2) The global temperature is increasingI am looking for the specific mechanism (most likely an equation / theories of physics) which climate scientists use to connect (1) and (2) together, and infer that (1) causes (2).

I am looking for the math / science that explains how a rise in C02 can cause a rise in global temperature.

I wonder if you might be able to clearly explain this to me in quite basic terms, and direct me to a source that explains it in greater depth?

Thanks.

random39a said:
There are two ideas:

(1) C02 is increasing.

(2) The global temperature is increasingI am looking for the specific mechanism (most likely an equation / theories of physics) which climate scientists use to connect (1) and (2) together, and infer that (1) causes (2).

I am looking for the math / science that explains how a rise in C02 can cause a rise in global temperature.

I wonder if you might be able to clearly explain this to me in quite basic terms, and direct me to a source that explains it in greater depth?

Thanks.
What have you found from your research so far? From the PF rules on Global Warming discussions:
Greg Bernhardt said:
CC/GW threads in this forum are intended for discussion of the scientific content of well-researched models of weather, climatology, and global warming that have been published in peer-reviewed journals and well-established textbooks.
So we need some peer-reviewed references to be able to discuss this. If you are not able to link to any, perhaps someone else can help you out with links...

berkeman said:
What have you found from your research so far? From the PF rules on Global Warming discussions:

So we need some peer-reviewed references to be able to discuss this. If you are not able to link to any, perhaps someone else can help you out with links...
Hi there :)

I have starting reading about radiative forcing and the greenhouse effect, and am trying to put this into context (a logical chain of cause - effect). If you could direct me to the mainstream (popular) peer-reviewed references, that would be great!

If you could also direct me to the popular (peer reviewed) graphs / models which show CO2 in relation to Global Temp., even better!

Thanks!

CO2 and also other gases absorb infra red radiation emitted by the Earth, hence more of these gases present in the atmosphere causes it to become warmer.
Without any of these gases the Earth would be a drastically colder place, but too much is bad as well.
That CO2 has this property of absorbing IR was established before anyone made a connection with global climate change.
I don't know what the first experimental proof was that CO2 absorbs infrared, but it's easy to demonstrate.
Here's a video using simple equipment that makes the point.

Last edited:
rootone said:
CO2 and also other gases absorb infra red radiation emitted by the Earth, hence more of these gases present in the atmosphere causes it to become warmer.
Without any of these gases the Earth would be a drastically colder place, but too much is bad as well.
That CO2 has this property of absorbing IR was established before anyone made a connection with global climate change.
I don't know what the first experimental proof was that CO2 absorbs infrared, but it's easy to demonstrate.
Here's a video using simple equipment that makes the point.

This is great. Thanks.

Does this experiment relate to a math / physics equation (fundamental classical gas theory)?

http://onlinelibrary.wiley.com/doi/10.1029/96JD03436/epdf
This was one of the first papers that helped shape the current climate change model.
Other papers can be found in http://agupubs.onlinelibrary.wiley.com/hub/jgr/journal/10.1002/(ISSN)2169-8996/ (Journal of Geophysical Research--Atmospheres)

http://onlinelibrary.wiley.com/doi/10.1002/2013GL058456/epdf
Radiative forcing at high concentrations of well-mixed greenhouse gases
This is open-access and one of a few hundred papers in Geophysical Research Letters http://agupubs.onlinelibrary.wiley.com/hub/journal/10.1002/(ISSN)1944-8007/

random39a said:
This is great. Thanks.

Does this experiment relate to a math / physics equation (fundamental classical gas theory)?
Aren't you just demonstrating boyles law here? Pressure in the bottle increases due to the addition of CO2 hence the temperature rises

davefarrell60 said:
Aren't you just demonstrating boyles law here? Pressure in the bottle increases due to the addition of CO2 hence the temperature rises

No, Boyle's law just has to do with the pressure vs volume, and assumes that the temperature is constant. The gas law involving pressure and temperature is Gay-Lussac's law, which states that the ratio of the pressure over the temperature is the same before and after heating/cooling a gas.

In any case, those gas laws are not valid when the number of gas molecules is changing, such as right after the tablets are dropped into the water and begin to fizz. You would have to look at the system once the number of gas molecules reaches a steady state or use another gas law (or combination of laws) which is more complicated.

random39a said:
There are two ideas:

(1) C02 is increasing.

(2) The global temperature is increasingI am looking for the specific mechanism (most likely an equation / theories of physics) which climate scientists use to connect (1) and (2) together, and infer that (1) causes (2).

I am looking for the math / science that explains how a rise in C02 can cause a rise in global temperature.

I wonder if you might be able to clearly explain this to me in quite basic terms, and direct me to a source that explains it in greater depth?

Thanks.
Interesting point of view. What about (2) causes (1)? There is no correlation between these two as far as some of these links states, but it can seriously make you wonder if you read about climate feedback loop..

Solomei said:
Interesting point of view. What about (2) causes (1)? There is no correlation between these two as far as some of these links states, but it can seriously make you wonder if you read about climate feedback loop..

Oh? I was under the impression that increased temperatures decreased the amount of CO2 diffused in seawater, leading to a rise in atmospheric CO2.

Evo
@Solomei - do you have a citation to back up those assertions? It would help us a lot. And the search you want to make to answer your two questions is 'Greenhouse effect' - use wikipedia or NASA websites, anyplace else you may get political answers not scientific ones.

Methane and CO2 and some others are so-called greenhouse gases.

Evo
Here are two sites that provide links to relevant scientific research.

The History Of Global Warming

Solomei

## 1. What are the main drivers of climate change?

The main drivers of climate change are human activities such as burning fossil fuels, deforestation, and industrial processes that release large amounts of greenhouse gases into the atmosphere. These greenhouse gases trap heat and cause the Earth's temperature to rise, leading to changes in the climate.

## 2. How do scientists know that climate change is happening?

Scientists use a variety of methods to study climate change, including analyzing temperature and sea level data, studying ice cores and tree rings, and using computer models to simulate future climate scenarios. These methods all show consistent evidence that the Earth's climate is changing.

## 3. What are the potential impacts of climate change?

Climate change can have a wide range of impacts, including rising sea levels, more frequent and severe natural disasters, changes in weather patterns, and negative effects on plants and animals. It can also have economic and social impacts, such as food and water shortages, displacement of populations, and decreased economic productivity.

## 4. Can we reverse the effects of climate change?

While it is not possible to completely reverse the effects of climate change, we can take steps to slow and mitigate its impacts. This includes reducing greenhouse gas emissions, transitioning to renewable energy sources, and implementing sustainable land use practices.

## 5. How can individuals make a difference in addressing climate change?

Individuals can make a difference by reducing their own carbon footprint through actions such as using public transportation, conserving energy at home, and eating a plant-based diet. They can also advocate for government policies and support organizations that are working towards solutions for climate change.

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