Global Warming and Human Beings — Pianoconcerto Forum

Member

Posts: 217
City: Mantova

November 23, 2018, 22:16

Good evening everyone, even though this topic is far from those discussed here, I thought I would share some of my reflections and doubts with you anyway.

I should preface that I am very far from any conspiracy theory etc.

Lately, reading various articles, I have connected some points from each and arrived at a doubt. (if any point in my reasoning is wrong, please tell me)

1. From Stephen Hawking's posthumous book, I believe I read that we, living beings, emit light (infrared)

2. The greenhouse effect is the rise in Earth's temperature because solar light/energy is trapped inside the atmosphere by greenhouse gases

3. The light that heats the planet is infrared

4. The main greenhouse gas is water vapor (around 70% of total greenhouse gases from what I have understood). Is it possible that, the more the planet warms, the more water vapor forms in the atmosphere?

5. According to the graph obtained from NASA data, Earth's warming is following this line

e this is instead the graph that indicates how the Earth's population has changed in recent years

That being said, the question arises spontaneously: isn't it us heating the planet? By living?

In history and prehistory, was the world more or less populated?

If yes, how much infrared light does a human being emit?

This is just a curiosity and a thought that has been haunting me in recent days

See you soon

Frank

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Posts: 3,838
City: -

November 26, 2018, 18:57

Complex issue. I think it is reasonable to consider that global warming is caused by multiple factors, not just the sum of heat emissions - in their various forms - created by a human being... including failed absorptions. For example, trees are natural "air conditioners"... but every human being also consumes trees.

So... just off the top of my head

Ludovica

Member

Posts: 298

November 26, 2018, 19:01

The world will survive us and bloom again... naturally

Eagle

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Posts: 264

November 26, 2018, 19:06

Let's say that humans have an average temperature between 35.5 and 36.5 degrees (in summer and winter)... we could be seen as little "radiators," which nonetheless contribute to raising the temperature.

I fear, however, that it is an insignificant percentage; the greenhouse effect probably has a greater impact... which exists in nature but is amplified by abnormal emissions of gases into the atmosphere caused by humans

By writing to each other via a forum... we are consuming electricity, so for the production of the latter, we are probably "asking" to burn fossil fuels which inevitably release cubic meters of CO2 into the air... well, let's not get depressed, Ludovica is probably right

Belmas

Member

Posts: 20

December 1, 2018, 14:45

Eagle wrote:
On ‎26‎/‎11‎/‎2018 at 19:06, Eagle said:
Let's say that humans have an average temperature between 35.5 and 36.5 degrees (in summer and winter)... we could be seen as little "radiators," which nonetheless contribute to raising the temperature.
I fear, however, that it is an insignificant percentage; the greenhouse effect probably has a greater impact... which exists in nature but is amplified by abnormal emissions of gases into the atmosphere caused by humans.
By writing to each other via a forum... we are consuming electricity, so for the production of the latter, we are probably "asking" to burn fossil fuels that inevitably release cubic meters of CO2 into the air... oh well, let's not get depressed, Ludovica is probably right.

I have just spoken about it on the blog, talking about overpopulation, a dear and uncontested theme in the '70s and '80s, which has become almost taboo today. Added to this is the understandable demand to guarantee space and energy to everyone. Family or collective aggregates are, in many cases, a solution, albeit with afflictions widespread within the range of unequal well-being. It will probably be necessary to change the models inherited from the era of the industrial revolution. There is no doubt that everything is possible; on the other hand, it is already so in other territorial regions.

Thesimon

Administrator

Posts: 4,504
City: Ariccia, RM

December 2, 2018, 23:46

The population has certainly grown tremendously, but I believe that the discussion about "small radiators" is absolutely insignificant compared to global numbers. However, this increase in population has certainly generated a higher energy requirement that must somehow be compensated for. Unfortunately, until a few years ago, we did not have the technologies to produce clean energy on a large scale, but now, thanks also to policies in the construction sector, every new building must be equipped with a photovoltaic system. This certainly lightens the load of fossil fuels, which are still irreplaceable for energy production but will surely continue to decrease in the years to come. The earth certainly has a self-defense mechanism in plants; therefore, by already reducing the workload on plants, the benefits will surely become apparent. We must always take into account that today's actions, viewed on a global scale, will only produce their effects after decades. The important thing is to start shifting towards renewable energy technologies that ensure clean energy, guaranteeing a long life to this irreplaceable habitat of ours.