What is Climate Change?

climate crisis
writer Ekolojist

Before looking for an answer to the question of what climate change is, knowing what climate actually is will deepen the meaning.

What is Climate? What is the Difference from Weather?

Weather is the changes we see and feel outside from day to day. It may rain one day and it may be sunny the next. Sometimes it's cold. Sometimes it's hot. Weather can also vary depending on distance. While people in one place are wearing shorts and spending time outside, there may be people shoveling snow on the other.

Climate is a word of Arabic origin and is used to describe long-term meteorological events. In order to comment on the climate of a place, At least 30 years of observation is required. Factors affecting climate characteristics; latitude, altitude, landforms, permanent snow line and distance to the sea.

What is Climate Change?

Well, now that we have discussed the definition of climate, we can now answer the question of what is climate change.

Climate changefor decades or longer Changes in weather conditions and oceans, land surfaces, and ice sheets.

Climate change is a change in the statistical characteristics of the climate system that persists for several decades or longer (usually at least 30 years). These statistical features include means, variability, and extremes. Climate change can result from natural processes such as changes in the Sun's radiation, volcanoes, or internal variability in the climate system, or from human effects such as changes in the composition of the atmosphere or land use.

Weather can be predicted with considerable success about a week in advance. Short-term fluctuations in climate, such as drought, can be predicted from season to season with limited skill. In contrast, changes in the long-term statistics of the climate system (climate change) can only be predicted if they result from known or predictable long-term effects.

Climate changeis the change in the usual weather conditions in a place. This could be a variation in how much rain a region receives per year, or it could be a change in a region's normal temperature during a month or season.

The main difference is: The weather can change in just a few hours, but it takes hundreds or even millions of years for the climate to change.

How can we determine the future climate if the weather is only predicted one week in advance?

The challenges of predicting weather and climate are very different. Predicting weather is like predicting how a turbulent river will move and evolve: predicting the eddy's path from its previous course is possible on short timescales, but eventually the eddy is affected by neighboring eddies and currents, making it impossible to predict its precise path and behavior. Similarly, the limit for predicting individual weather systems in the atmosphere is about 10 days.

On the other hand, predicting climate is like predicting the flow of an entire river. Changes in precipitation require consideration of the great forces that control the river, such as the operation of dams and the extraction of water. Projections of anthropogenic climate change are possible for decades or centuries because human activities have predictable effects on future atmospheric composition and, accordingly, a predictable effect on climate.

what is climate change

Is Earth's Climate Changing?

Earth's climate is always changing. There have, of course, been periods when Earth's climate has been warmer or cooler than it is now. Such changes can take place over thousands or even millions of years. Climate change is quite different from such changes.

Scientists studying the Earth see that the Earth's climate is warming. Earth's temperature has increased by half a degree Celsius, or Fahrenheit, in the last 100 years. This increase, called global warming, may not seem like a big and significant change at first glance, but small changes in Earth's temperature can have big effects.

greenhouse gas emissions concentrations in the atmosphere, even if it stops suddenly, 0.5 to 1°C is expected to cause an increase in global temperature. With this result, it is clear that even a single degree change will create serious changes on the planet. For example, six thousand years ago, when the world was one degree warmer than it is now, America's farmland, Nebraska, was a desert, and dust and sandstorms dominated the region.

You can reach our article, which deals with the effects of global warming and the results of research that predicts how it will affect the planet and living things with each degree increase, via the link below.

Click: How Will Global Warming Affect the World and Us?

What Causes the Earth's Climate to Change?

Many things can cause the climate to change on its own. Earth's distance from the sun can vary. The sun can send more or less energy. Oceans can change. When a volcano erupts, it can change our climate.

However, the cause of the global climate change we are in based on human reasons. In other words, the human factor is in the first place in bringing this change to a negative level and in the rapid realization of climate change.

So how does the human impact on climate change occur?

Our atmosphere is composed of carbon dioxide, methane, water vapor, ozone, nitrous oxide, etc., which are also described as greenhouse gases. Thanks to the gases, it sends some of the sun rays reflected from the earth back to the earth. With the greenhouse effect, the temperature of the earth is kept at the optimum level that all other living things can sustain. But the main problem is that the more carbon dioxide suspended in the atmosphere, the warmer the earth will be.

About 200 years ago, we started to extract the stored carbon under the ground through fossil fuels. Plants use CO2 in the air and decompose it into its elements and release O2 (oxygen) into the air. Animals use the oxygen in the air for respiration and release CO2. As it can be understood from here, animals and plants are interconnected. For hundreds of millions of years, the remains of dead animals and plants are exposed to pressure and heat under the ground.

These animal remains turn into energy sources, which we call fossil fuels. There are 3 important energy sources, which we call fossil fuels, these are coal, oil and natural gas. By burning these fuels, we can meet the energy needs of factories, power plants or cars. However, the carbon balance released to the world is disturbed by the burning of these fossil fuels. Burning these fuels increases the amount of carbon in the air. In short, we can say that the main cause of climate change is uncontrolled carbon emissions.

climate change

The world population has increased over time and we have begun to slaughter nature in order to live and farm in more areas. Therefore, we have reduced the number of plants that can destroy the increased amount of carbon dioxide with fossil fuels through photosynthesis. We've lowered the world's power to reduce carbon blocks. And since 1750, the amount of carbon in the atmosphere has increased by 40% and is unlikely to decrease. Excess carbon in the atmosphere causes more heat to be trapped on Earth and the melting of polar ice caps, accelerating the greenhouse effect. Warming air causes glaciers to melt. As glaciers melt, they can reflect less sunlight, causing the air to warm faster. The warmer the weather, the warmer the oceans will be. Sea level rises and floods can occur. Natural systems break down and the weather gets extreme over time. Climate change can affect different people and regions in different ways.

It is very dangerous to be visible that the climate is changing. It shows that this situation is quite serious and vital activities are now limited by climate change. Overheating and cooling; causes the extinction of living things.

It is obvious that all living things experience unaccustomed climatic conditions. Since the only living thing that can express this situation is human, it should not be thought that the change experienced is noticed only by humans.

The decrease in the living species in the biosphere day by day is due to the fact that living things cannot keep up with this change. Climate change in fact, it happens gradually with the changes in nature, and living things can easily adapt to this situation. However, with the introduction of human factors and the rapid progress of living things, the inability of living things to keep up with this change brings with it many negative consequences.

climate change

As the causes of global climate change, the increase in human activities such as population growth, energy consumption, land use, international transportation or trade can be shown as the cause. In addition to these reasons, the development of industry can be given as an example.

The negative effects of humans on nature have resulted in consequences such as the change in the gas ratio in the atmosphere and the increase in the greenhouse effect. People's use of technology, living independently of nature, and many other developments have been made without thinking about how nature will respond to it.

Humanity has been brought into a psychology on production, and each person's selfish involvement in life has come out. With this situation, the destruction of nature has occurred and climate change resulted in large proportions.

Climate is the most important feature of a geography. For this reason, its change has affected all living things. Even the geographical conditions of the world have changed. The rate of water found, the rate of gas, the function of the atmosphere have changed.

Consequences of Climate Change 

Experts make predictions about the consequences of climate change. In other words, the damages are calculated with the predictions made for the future. In today's conditions, it is possible for animals to be harmed with many examples; however, if this situation continues in this way, it is thought that an irreversible damage will occur.

Peoples if they do not take actions to prevent climate change and there is no collective action; the destruction of nature will be watched.

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