What is Global Warming?

What Does Calentamiento global Mean

It is known as global warming, together with climate change , one of the major ecological concerns of the late twentieth and early twenty-first centuries, consisting of the sustained increase in the average temperature of planet Earth over a century, which shows numerous effects on climatic behavior and on the average level of oceanic waters , given the gradual melting of polar ice.

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The record of global warming is alarming and has been confirmed by numerous scientific tests . However, there is no absolute consensus regarding the causes of this increase in temperature. The dissemination of the subject in the specialized press and the observation of the effects of climate change in various latitudes of the Earth reflect that it is one of the greatest concerns for the future of humanity .

So much so, that the United Nations Organization has commissioned some of its representatives to lead a necessary debate, which aims to protect the future of humanity from possible climate catastrophes. However, the thesis that blames human industrial activity for the increase in greenhouse gases in the atmosphere (such as CO 2 ) is the least accepted in countries such as China and the United States, precisely those with the highest emission of these gases to the atmosphere.

While debates are taking place regarding what causes it and how it can be reversed or at least slowed down, the effects of global warming and climate change are being seen throughout the planet, turning wetlands into deserts and gradually but dramatically altering the thermal balance of the planet.

It can help you: Carbon cycle

Causes of global warming

Human activity is believed to accelerate climate change.

Broadly speaking, there are two hypotheses regarding global warming:

  • Glacial cycles. The Earth, in its journey around the Sun , varies its position slowly over the centuries, and this gives rise to humanly imperceptible cycles of warming and freezing, known as glaciations. Thus, cold cycles would cause polar growth, while warm cycles would cause it to melt.
  • Human activity. The most accepted of both theories, which does not completely rule out the influence of glacial cycles on climate change, assures that direct human responsibility for accelerating warming is inevitable, the upward curve of which coincides, not coincidentally, with the beginning of the Industrial Revolution . This explanation says that the gases produced by human industry and agriculture accumulate in the atmosphere at a higher rate than it can have, and generate a screen that prevents the dissipation of heat into space, increasing the temperature as occurs in a greenhouse. .

Consequences of global warming

The expansion of the coastline would submerge entire cities.
  • Melting of the poles. Increased heat in the air and seawater would cause glaciers and permafrost in the polar regions to melt, adding fresh water to the ocean and slowly raising its water level. Thus, flooding and the expansion of the coastline would submerge entire cities under water.
  • Extreme weather events. The imbalance of temperatures affects the extremes of certain climates: the hot ones are hotter and the cold ones much colder, which is accompanied by more extreme meteorological phenomena: more intense rains, more devastating hurricanes, etc.
  • Abrupt ecological changes. Changes in climate engender changes in ecological niches , some gradually and others much more abruptly. For example, glacial melt releases not only water, but gases such as methane and carbon dioxide, the increase of which adds to the greenhouse effect and leads to the acidification of the oceans, affecting millions of living beings .
  • Landslides. Increases in the rate of precipitation or the melting of perennial snow in the mountains can cause the soil to moisten and liquefy, leading to avalanches and other potentially lethal landslides.
  • New deserts. The temperatures that are too warm and the prolongation of the drought destroy the local flora and gradually generate new deserts , little useable for human and animal life.

How to avoid and prevent global warming?

The first step towards designing a strategy to deal with climate change is obviously to recognize it. Theories regarding human non-responsibility in the phenomenon have the disadvantage of encouraging a carefree attitude in the citizens of the most industrialized countries, responsible for the highest greenhouse gas emissions.

Only by reducing the amount of carbon that is discharged into the atmosphere , through significant industrial reductions and the promotion of business laws to protect the environment , would the planet be given the chance to reverse the load of gases and regain a thermal balance. None of this would be short-term, of course, but it would take more than a decade to notice the change.

On the other hand, adaptation to climate change is a response to minimize material damage and human losses, through barriers and urban structures that minimize the damage caused by extreme weather events.

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