Leading Causes Of Global Warming: What You Need To Know

Uchechukwu Kyrian Ufoh

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Some leading causes of global warming are overfishing, transportation, industrialisation, etc.

Global warming is one of our planet’s most critical environmental challenges. It has far-reaching consequences for our climate, ecosystems, and overall way of life. 

Understanding its impacts and root causes is essential for effectively preventing further damage. By transitioning to clean energy, promoting sustainable practices, and taking individual actions, we can reduce global warming and keep the planet safe for future generations. 

To address this pressing issue, it is essential to understand the leading causes of global warming and explore practical ways to prevent it. 

In this article, we will delve into the impact of global warming, its root causes, and the strategies to mitigate its effects. We’ll also shed light on how our ocean actions impact the climate.

The Impact of Global Warming

Leading Causes Of Global Warming

The effects of global warming are becoming increasingly evident worldwide, with severe implications for both the natural environment and human society. A few of the critical influences comprise:

Rising Temperatures

One of the most noticeable effects of global warming is the rise in average global temperatures. I’ve noticed the severe heatwaves, and it’s been more frequent of late. This poses health risks and strains energy resources.

Thawing Ice and Increasing Ocean Levels

As temperatures rise, glaciers and ice caps melt, increasing ocean levels. 

Severe Weather

Global warming is related to an upsurge in extreme climate occurrences such as hurricanes, water depletion, and severe downpours. These events disrupt agriculture, infrastructure, and communities.

Aquatic Acidification

The extra carbon dioxide in the sky is immersed by the seas, causing ocean acidification and hurting aquatic life. 

Loss of Biodiversity

As temperatures rise, ecosystems are disrupted, and many species struggle to adapt or face extinction. This has far-reaching consequences for the planet’s biodiversity.

Health Impacts

Global warming can worsen air quality, leading to respiratory issues. There has been a spread of diseases in my area due to air pollution, and this can be affected by changing climate patterns.

Leading Causes of Global Warming

1. Overfishing

Overfishing is one of the leading reasons for global warming. The excessive harvesting of marine resources depletes our oceans and contributes to climate change. The carbon footprint of fishing operations and consumer seafood transportation are significant factors.

The Link Between Overfishing and Global Warming

Methane Release: Overfishing has led to imbalances in the marine ecosystem. When large predators are overharvested, their prey species often multiply. This, in turn, can lead to increased methane-producing microbes in the oceans. 

Methane is a potent greenhouse gas, and its release contributes to global warming, making it one of the lesser-known but significant causes of global warming.

Alteration of Ocean Food Webs: Overfishing disrupts the natural food chains in the oceans. This can result in a proliferation of certain species, which may lead to increased consumption of phytoplankton. 

These microscopic organisms play a crucial role in absorbing carbon dioxide (CO2), one of the primary causes of global warming. 

When their populations decline due to overfishing, less CO2 is absorbed from the atmosphere, further exacerbating global warming.

The Role of Bycatch

Wasted Resources: Bycatch, the unintentional capture of non-target species, is a common consequence of overfishing. This often includes endangered species and juvenile fish. 

The energy and resources used to catch, process, and discard these species add to the carbon footprint of the fishing industry, contributing to global warming and emphasizing its role as one of the significant contributors to global warming.

Disruption of Ecosystems: Bycatch disrupts marine ecosystems. Removing these species can have cascading effects on predator-prey relationships and the overall health of the oceans. 

Such disruptions can indirectly affect the ocean’s capacity to absorb CO2, which is vital for mitigating global warming and understanding the complex global warming causes.

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The Carbon Footprint of the Fishing Industry

Fuel Consumption: Commercial fishing vessels consume significant amounts of fossil fuels. CO2 is released when these fuels are burned. 

In addition to CO2 emissions, fishing operations release black carbon, which can settle on ice and snow, accelerating their melting in polar regions. 

This highlights the carbon footprint of the fishing industry as one of the lesser-known but crucial reasons for global warming.

Processing and Transportation: After the catch, fish are processed, packaged, and transported to various parts of the world. All these activities have associated carbon footprints, contributing to the causes of global warming.

2. Industrialisation

The rapid industrialisation of the world has led to increased greenhouse gas emissions. Factories, power plants, and other industrial processes release carbon dioxide and other pollutants into the atmosphere, creating a significant source of global warming.

The roots of industrialisation and its association with global warming can be traced back to the Industrial Revolution, which began in the late 18th century. 

This period significantly shifted from agrarian-based economies to industrial and manufacturing-driven societies. The increased mechanization and reliance on fossil fuels catalyzed this transformation.

Fossil Fuels and Greenhouse Gas Emissions: Fossil fuels, such as coal, oil, and natural gas, are the lifeblood of industrialisation. 

These energy sources power factories, transportation systems, and electricity generation. 

The burning of fossil fuels for industrial processes is one of the primary contributors to global warming. The release of greenhouse gases, notably carbon dioxide, intensifies the greenhouse effect, contributing to rising global temperatures.

Energy-Intensive Production Processes: Many industrial processes are energy-intensive, consuming vast amounts of electricity and other resources. 

This energy consumption, often derived from fossil fuels, produces higher greenhouse gas emissions and is an essential cause of global warming. 

Additionally, some industrial processes release other potent greenhouse gases, like methane, which has a significantly higher heat-trapping capability than CO2.

Transportation and Global Trade: Industrialisation has led to a boom in global trade and transportation. While this has brought economic benefits, it has also led to increased emissions due to the transportation of goods globally. 

The expansion of global trade and the accompanying increase in transportation are significant causes of global warming. Shipping, aviation, and road transportation are significant sources of greenhouse gas emissions.

Technological Advancements: While industrialisation has brought numerous technological advancements, it has also given rise to energy-consuming devices and processes. 

Increased consumer demand for technology and electronic gadgets has led to higher energy consumption and electronic waste, which, if not appropriately managed, can contribute to environmental degradation and climate change.

The proliferation of technology and electronic devices associated with industrialisation has its share in the causes of global warming. The energy requirements and electronic waste generated contribute to environmental challenges.

3. Agriculture

Agriculture is a significant contributor to global warming, with activities like livestock production, deforestation for farming, and synthetic fertilisers releasing large amounts of greenhouse gases.

Farming and The Release of Greenhouse Gas: Agriculture takes the lead as one of the contributors to global warming, primarily due to its significant emissions of methane (CH4) and nitrous oxide (N20), potent greenhouse gases. 

The main culprits include enteric fermentation in livestock, rice cultivation, and the use of synthetic fertilizers.

Livestock and Enteric Fermentation: Livestock, particularly cattle, play a substantial role in global warming. They produce methane during digestion through a process known as enteric fermentation. 

The number of cattle raised for meat and dairy globally produces a significant methane output. This methane traps heat in the atmosphere, contributing to rising temperatures.

Cultivation Of Rice Paddies: Rice paddies are other significant contributor to methane emissions. Back when I visited the Philippines, I noticed that the fields were flooded to cultivate rice, creating anaerobic conditions that promote methane-producing microorganisms. 

As a result, substantial amounts of methane are released into the atmosphere during rice cultivation.

Synthetic Fertilizers and Nitrous Oxide: The use of synthetic fertilizers in agriculture contributes to nitrous oxide emissions and is a significant contributor to the earth’s warming. 

These fertilizers contain nitrogen compounds that can undergo chemical reactions in the soil, releasing nitrous oxide, a potent greenhouse gas. This occurs not only in conventional agriculture but also in organic farming when synthetic fertilizers are used.

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Water Usage and Energy-Intensive Agriculture: Modern agriculture often relies on energy-intensive processes and large-scale irrigation. Pumping and distributing water for irrigation can be energy-intensive, relying on fossil fuels, which release greenhouse gases. 

The energy requirements of mechanized agriculture are a notable factor in global warming due to its reliance on fossil fuels.

Producing Food: The food production system, from agriculture to distribution, contributes to global warming through various processes such as transportation, packaging, and energy-intensive practices.

4. Manufacturing Goods

The manufacturing industry plays a crucial role in global warming. Producing goods requires energy, often from fossil fuels, resulting in carbon emissions.

5. Transport and Vehicles

The transportation sector, including cars, trucks, and aeroplanes, significantly contributes to global warming. The combustion of fossil fuels in these automobiles emits carbon dioxide and different contaminants.

Transportation and Agricultural Supply Chains: Agriculture is intimately connected with transportation and distribution. The vast distances that food travels from farms to consumers result in significant carbon emissions from trucks, ships, and planes. 

This transportation, part of agricultural supply chains, plays a substantial role in global warming. 

The transportation and distribution of agricultural products are integral causes of global warming, contributing to carbon emissions from various modes of transportation.

Generating Power: The generation of electricity, often reliant on fossil fuels, contributes significantly to global warming. Transitioning to cleaner energy sources is essential in addressing this issue.

6. Consuming Too Much

Excessive consumption, especially in developed countries, leads to overproduction and waste, which, in turn, contributes to global warming. The “throwaway culture” harms the environment.

7. Waste

Waste management and disposal processes release methane, a potent greenhouse gas. Reducing waste and adopting sustainable waste management practices are critical.

The Effect of e-Waste: Electronic waste, or e-waste, is another facet of waste contributing to global warming. As our reliance on electronic gadgets and appliances grows, so does the amount of electronic waste generated. 

When improperly discarded or incinerated, e-waste releases harmful chemicals and gases, including toxic metals and greenhouse gases.

To combat the impact of e-waste on global warming, responsible recycling and disposal of electronic devices have become crucial. 

When electronics are appropriately recycled, their components can be reused, reducing the need for new materials and the associated energy consumption.

Plastic Waste and Its Environmental Implications: The production and disposal of plastics release carbon dioxide into the atmosphere. 

Moreover, when plastics degrade over time, they break down into microplastics that can contaminate the environment and contribute to climate change.

The solution to plastic waste is reducing single-use plastic, promoting recycling, and developing sustainable alternatives to traditional plastics.

Food Waste: Food waste, an issue prevalent in many parts of the world, directly connects to global warming. 

When food waste ends up in landfills, it undergoes the same anaerobic decomposition process as other organic waste, producing methane emissions. This not only wastes valuable resources but also contributes to the greenhouse effect.

Efforts to mitigate food waste, such as better food management and composting, are essential to reduce its impact on global warming. These strategies not only reduce methane emissions but also save money and resources.

8. Deforestation

Deforestation not only results in the loss of vital forests but also releases stored carbon into the atmosphere. This process significantly contributes to global warming. 

The conversion of land for industrial purposes, coupled with deforestation, is another one of the causes of global warming. The loss of forests reduces the Earth’s capacity to absorb carbon dioxide, further intensifying the climate crisis.

Deforestation for Agricultural Expansion: To meet the growing global demand for food, vast areas of forests and natural habitats are cleared for agricultural purposes. 

Deforestation driven by the expansion of agriculture is one of the critical causes of global warming. 

Deforestation results in the release of stored carbon dioxide and reduces the Earth’s capacity to absorb CO2. It also disrupts ecosystems and contributes to global warming.

The Deforestation-Global Warming Connection: Clearing forests for various purposes has profound implications for the environment, notably greenhouse gas emissions and disruptions to the planet’s natural carbon cycle.

Carbon Release and the Greenhouse Effect: Forests act as vital carbon sinks, absorbing and storing carbon dioxide (CO2) from the atmosphere. When trees are cut down and forests are cleared, this stored carbon is released into the atmosphere. 

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The released CO2 and other greenhouse gases enhance the greenhouse effect, leading to rising global temperatures.

Burning of Forests: After trees and vegetation are cleared, they are frequently set on fire, discharging enormous amounts of carbon and additional greenhouse gases into the atmosphere. 

These emissions contribute directly to global warming, with the burning of tropical forests, in particular, being a significant source of carbon emissions.

The practice of burning cleared forests is a direct contributor to global warming, as it results in the release of substantial carbon emissions.

Deforestation and Land Conversion: Deforestation often accompanies land conversion for agriculture, mining, and urban development. 

These transformations disrupt ecosystems, increase the albedo effect (reflectivity of the Earth’s surface), and contribute to warming. It also diminishes the planet’s ability to soak up CO2.

Loss of Biodiversity: The loss of biodiversity due to deforestation is closely tied to the causes of global warming, impacting ecosystems and the carbon cycle. 

Biodiverse forests tend to be more resilient and play a crucial role in maintaining the carbon cycle, which is vital in regulating the Earth’s climate.

Deforestation can indirectly affect climate patterns, including changes in precipitation and temperature. Forests help to maintain regional climate stability, and their removal can lead to disruptions in weather patterns.

Forest Fragmentation and Ecosystem Stress: Even when not entirely cleared, forests can be fragmented, which has implications for their ability to store carbon and support biodiversity. Fragmented forests are often more susceptible to stressors like pests and diseases, which can lead to increased tree mortality and further carbon release.

Averting Global Warming

Dealing with global warming needs a multifaceted method. Here are some effective strategies to prevent and mitigate its effects:

1. Transition to Clean Energy

Shifting from fossil fuels to clean and renewable energy sources like solar, wind, and hydroelectric power is a critical step in reducing emissions from the energy sector.

2. Afforestation and Reforestation

Promoting tree planting and protecting existing forests can help sequester carbon dioxide and mitigate deforestation.

3. Sustainable Agriculture

Sustainable agricultural practices, such as organic farming and reduced fertilizer use, can minimize greenhouse gas emissions.

4. Energy Efficiency

Enhancing energy efficiency  in homes, industries, and transportation can reduce energy consumption and emissions.

5. Public Transportation and Electric Vehicles

Encouraging the use of public transportation and electric vehicles can significantly cut emissions from the transportation sector.

6. Waste Reduction and Recycling

Reducing waste, recycling, and composting can help reduce methane emissions from landfills.

7. Carbon Pricing 

Implementing carbon pricing mechanisms, such as carbon taxes or cap-and-trade systems, can provide economic incentives to reduce emissions.

8. Individual Actions

Individuals can make a difference by reducing energy consumption, conserving water, and supporting eco-friendly products and practices.


By addressing the leading reasons for global warming and implementing these strategies, we can significantly reduce greenhouse gas emissions and mitigate the effects of climate change. 

It’s a collective effort that requires cooperation at all levels of society, from individuals to governments and industries. Together, we can take meaningful steps to combat global warming and ensure a sustainable future for our planet.

Uchechukwu Kyrian Ufoh

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