Introduction:
During the complete combustion of fossil fuels, several gases are formed. However, the gas primarily responsible for global warming is carbon dioxide (CO2). This greenhouse gas traps heat in the Earth's atmosphere, leading to the greenhouse effect and subsequent global warming.

Carbon Dioxide (CO2) and Global Warming:
- Carbon dioxide is released when fossil fuels such as coal, oil, and natural gas are burned for energy production, transportation, and industrial processes.
- CO2 is a greenhouse gas, meaning it can trap heat radiating from the Earth's surface and prevent it from escaping into space.
- This trapped heat leads to an increase in the Earth's average temperature, known as global warming.
- The excessive release of CO2 into the atmosphere due to human activities has significantly contributed to the current global warming trend.

Enhanced Greenhouse Effect:
- The greenhouse effect is a natural process that keeps the Earth's surface warm enough to sustain life.
- However, human activities have intensified this effect by increasing the concentration of greenhouse gases in the atmosphere, particularly CO2.
- This intensification of the greenhouse effect is known as the enhanced greenhouse effect.
- The enhanced greenhouse effect is causing the Earth's temperature to rise at an alarming rate, resulting in numerous adverse effects on the environment and ecosystems.

Consequences of Global Warming:
- Rising temperatures: Global warming leads to increased average temperatures worldwide, causing heatwaves, droughts, and heat-related health issues.
- Melting ice caps and glaciers: The warming climate is causing the polar ice caps and glaciers to melt, contributing to rising sea levels.
- Extreme weather events: Global warming intensifies extreme weather events such as hurricanes, floods, and storms.
- Disruption of ecosystems: Many plant and animal species are facing challenges as their habitats change due to global warming.
- Ocean acidification: The absorption of excess CO2 by the oceans leads to acidification, harming marine life and coral reefs.

Conclusion:
In conclusion, carbon dioxide (CO2) is the primary gas responsible for global warming, resulting from the complete combustion of fossil fuels. The excessive release of CO2 into the atmosphere due to human activities has amplified the greenhouse effect, leading to rising temperatures, melting ice caps, extreme weather events, and other harmful consequences. It is crucial to reduce our carbon emissions and transition to cleaner and more sustainable energy sources to mitigate the impacts of global warming.

Co2