Global Climate Change

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The global climate change

In recent years it is common to listen all around media about climate change. But how much is true of the global climate change? What will happen if we don’t fight against climate change? And what we can do to help the health of our planet?

Will try to answer through the analysis of the known facts. I hope I can help you better understand the problem.

Global warming as part of global climate change.

Along the discussions about global climate change, we usually find the terms “global warming” and “climate change.” These two definitions are related to the same subject, but there is a difference. With the term “global warming” we are talking about the global growth of the temperature from the end of 19th century. Instead the term “climate change” is meaning the entire group of events, like the growth of greenhouse gasses, the melting glaciers, the increase of sea level and so on.

Why is it happening?


It happens because of our inadequate economic model. Many of the industrial processes we use are old. Many years ago nobody thought that the world had limits. People thought it would be possible to do anything without worrying about the consequences, but it was not true. The speed with which the world’s population has grown and technological development have created immense pressure on the planet.

The nature of our planet is a mega ecosystem, so precisely as it happens for the human body when it causes a wound somewhere, the whole world will be sick. We have made many injuries and nature behaves accordingly.

The animal wild world is also showing big problems. Around the world is possible to see effects on the wild world. One example can be the arrival of polar bears in the villages. In the past rarely happens, now some agencies organize visit for a looking the polar bears.

The point of view of science

There are two types of thinking in the scientific environment concerning climate change. The deniers, those who say that climate change would be the same as studies show. That the hot and cold ages have always occurred. And then there are the protectionists, who are the vast majority. They say say that without a radical and robust intervention we are going to the destruction.

It must be said that it is true. In the timeline there are hot and cold ages, and it is a cyclic thing.
The point is that none was warm like the current one in such a short space of time. And this is precisely the point, the speed with which this change is happening.

Analyzing the values ​​and parameters was established that the man with his unsustainable processes is giving a push that is leading us to the point of no return. Could scientists be wrong? In reality, I do not think so. It is more than plausible to think also by the unstoppable growth of the population (by 2050 we expect to be 10 billion) that turning back is no longer possible once crossed that threshold.

The threshold of no return

From the end of the 19th century to today, there has been an increase in global temperature of 0.85 degrees centigrade. Most of this increase is at the end of the 20th century and every three decades have been warmer than the previous one. In practice, an increasingly rapid rise in temperature is now a reality.

The UN report of 2018 has shown that within 12 years if we do not intervene immediately drastically, we have exceeded the 1.5-degree increase in global temperature. This value, according to the major world scientists is the no return point, it means that we will no longer hope to restore the previous values ​​and that we must expect natural disasters that we can not imagine today.

COP24 Katowice Poland

The UN global climate change conference ended in mid-December 2018. How did it go? Neither good nor bad. Why do I say this? Because in a few words an agreement has been reached that is more a transition agreement than a final and robust agreement. The main players who are US, China, and the EU have reached an agreement on how to measure their emissions and their climatic conditions. But it will only be in 2020 that everyone will present stronger climate plans.

Will they be two years lost? Let’s hope not, we hope that in these two years we will become more conscious and study sustainable alternative models.

The scientists are in the same line. The rise of temperature is not an opinion.
Credit: NASA Climate 365 project

Main causes of climate change

We said earlier that climate change and temperature rise are parts of the same problem, let’s see how better.

The increase in global temperature is the product in large part of the rise in greenhouse gases in our atmosphere. These gases behave like a glass that lets light and radiation pass but prevents heat from escaping. Consequently, we have the temperature increase.
Many of these gases are already present in nature, but our activities multiply their production: carbon dioxide (CO2), methane, nitrogen oxide, fluorinated gases.

Carbon dioxide

In the global climate change high impact is from combustion of coal, oil, and gas product carbon dioxide. So we think of coal-fired power plants still scattered around the world. Oil through its derivatives we use it everywhere in transport, but it is also the basis of production of plastics. Gas instead of heating and cooking in general.

Deforestation

But the levels of carbon dioxide also increase due to the downing of forests. If until now you have thought that the movements against deforestation in the Amazon and the world are crazy people who have nothing better to do in life, it is time to change your mind.

Deforestation enormously affects because, in addition to not producing more oxygen, it no longer uses CO2 to provide it, which then remains in the air. Furthermore, we must add that the wood in the fallen plants contain CO2 and this will go into the atmosphere and helps to raise the level again.

Methane

The increase in meat demand has led to the rise in livestock reared for human consumption. But these animals during digestion produce methane in extraordinarily high quantities.

Nitrogen oxide

Mainly produced by the use of fertilizers based on nitrogenous substances.

Fluorinated Gases

Nowadays they are out of the market in many continents but still exist and have a greenhouse effect 23,000 times greater than CO2.

In the Kyoto protocol Hydrofluorocarbons (HFCs), Perfluorocarbons (PFCs) and Sulphur Hexafluoride (SF6) are collectively known as fluorinated greenhouse gases. (source: Environmental Protection Agency)

The rise of CO2 level
Credit: climate.nasa.gov

What should we do?

It is evident that being a global thing requires effective and probably unpopular policies. It is necessary to change the current industrial production model with a sustainable model. , applies to all sectors of human activity. We must not be afraid, even in the past the measures of improving the quality of life were unpopular but they have had their effects, and now we can not be.

A simple example: when the use of seat belts became mandatory in cars many people refuse the use them so much that it was necessary to add more rules to the detriment of those who do not use them and those who made an accident without using them. How many of you would today buy a car without seat belts? Their use has decreased by 50% the deaths in the event of a car accident.

We are the future

However, I believe that we will do the real revolution. If we manage to create a culture of conservation and collective well-being, those who command can not but take it into account. The social model of the future will have to foresee the gradual cancellation of poverty, this will lead to a higher level of education and greater social participation.

To reduce the global climate change will be necessary to limit the indiscriminate use of plastics. And all those productions with a high environmental impact. Stop defacing the tropical forest and forests in general. Switching to renewable electricity production is possible and it, looking like an essential step for vehicles. There will be a need for a new ruling class, with ideas that are also visionary. That considers the global challenge to be the necessary step for a better future.

We are planning to land on Mars, and it will only be the first step in an unimaginable future. But how we think we can survive in such restrictive conditions if we can not survive with all the abundance, our beloved land gives us.

Resouces:

Nasa https://climate.nasa.gov/evidence/

EPA http://www.epa.ie/



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