Conference of the Parties to the United Nations Framework Convention on Climate Change (COP27)

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Effects of Climate Change

08 July, 2022
03:29 PM
01 September, 2022
02:37 PM

Effects of Climate Change

Climate change is one of the most important reasons that affect the environment, as droughts and changing global rainfall patterns can destroy livelihoods and cause the spread of dangerous diseases such as malaria and dengue fever. It is worth noting that climatic changes cause the destruction of habitats and settlements, crises that are difficult to recover from, in addition to impacts on the environment, salient of which are:

First: The Earth's temperature

Climate change has contributed to an increase in the average temperature of the Earth by more than 0.9 degrees Celsius since 1906 AD, as this rise led to the melting of glaciers and sea ice and changing precipitation patterns.

The human activities that contribute to the increase of greenhouse gases in the atmosphere are the basis for the increase in global temperatures. The most prominent effects of climate change on temperatures are as follows:

- Melting ice caps

- Sea level rise

- Destruction of habitats

- Migration of many animals to cooler regions

- changing global rainfall patterns

Second: Agricultural crops

Climate changes such as the change in temperature, weather intensity and the percentage of carbon dioxide in the atmosphere affect agricultural crops significantly, as they affect crop yields according to the type of crops and the conditions required for their proper growth. The most prominent effects of climate change on agricultural crops are as follows:

- The increase in carbon dioxide level affect crops in two important ways: they boost crop yields by increasing the rate of photosynthesis, which spurs growth, and they reduce the amount of water crops lose through transpiration.

-  Temperature and precipitation extremes affect plant productivity.

- Floods and droughts prevent the growth of agricultural crops.

- Climate changes lead to the growth of weeds, fungi and pests, which affect plant productivity.

Third: Water resources

- Climate change greatly affects water supplies and food production in various parts of the world, and as a result, the shortage of drinking water can lead to significant damage to all different environments. The most prominent effects of climate change on water resources are as follows:

- Increased water evaporation affects the absorption of water from oceans, lakes, soil and plants.

-  Heavy rainfall leads to floods, which can cause the death of large numbers of people and animals.

- The change in temperature affects the change in the main ocean currents.

Fourth: The strength of hurricanes

Climate change affects hurricanes, as it is believed that hurricanes appear as a result of a state of instability in the atmosphere.

It is well known that hurricanes form over relatively warm sea surfaces, which has led to notions that global warming will greatly increase hurricane activity globally.

Scientists say that unusually warm sea surface temperatures have helped to increase storm activity, making it more likely for hurricanes to behave in certain ways, salient of which are:

  1. Higher winds.There’s a solid scientific consensus that hurricanes are becoming more powerful, and the stronger the hurricanes, the greater the destruction caused by them, as stronger winds mean downed power lines, damaged roofs and, when paired with rising sea levels, worse coastal flooding.
  2. More rain.Warming also increases the amount of water vapor that the atmosphere can hold. In fact, every degree Celsius of warming allows the air to hold about 7 percent more water. That means we can expect future storms to unleash more rain.
  3. Slower storms.Researchers do not yet know why storms are moving more slowly, but they are. However, they say a slowdown in global atmospheric circulation, or global winds, could worsen flooding.
  4. Wider-ranging storms.Because warmer water helps fuel hurricanes, climate change is enlarging the zone where hurricanes can form.
  5. More volatility.As the climate warms, researchers also expect storms to intensify more rapidly.

However, researchers are still unsure about why it’s happening.

Fifth: Droughts

Global warming will profoundly affect the water cycle. Thus higher temperature will result in greater evaporation and more extreme droughts, causing severe damages in many regions of the world, including water systems, water supply, irrigation, agriculture, water infrastructures as well as populations.

Sixth: Human health

Climate change also affects human health, as it can result in pollution of air, shelter, food quality and drinking water, which are significant factors to maintaining human health.

Also, researchers at the World Health Organization expect that change Climate change will contribute to an increase in deaths by 250,000 annually between 2030 and 2050, and the following are the most prominent effects of climate change on human health:

- Spread of insects that carry infectious diseases,

- Increase human fears, causing anxiety and despair,

- Increase immigration from rural areas that suffer from drought and a decrease in the proportion of fish to urban cities causing an increase in overcrowding, which affects human health.

Seven: Global security

Climate change contributes to creating disruptions in the global security system, where the scarcity of food, water and the integrity of ecosystems can lead to destabilization in various societies and fuel ethnic conflicts in addition to the various conflicts that everyone may be exposed to in order to obtain these resources, which are the basis of life; especially after the tendency of some countries to cooperate with others will decrease in light of global warming and rising temperatures in order to provide the basic requirements of life.

Eighth: Immigration

Climate change has recently become a major cause of immigration, as droughts, fluctuating temperatures and erratic rainfall lead to a decrease in agricultural production, which constitutes an obstacle to livelihoods in countries that depend mainly on agriculture, leading to an increase in the number of immigrants, who are the residents of these countries.


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