What are the disadvantages of global warming?

An excessive increase in greenhouse gases (GHGs) such as carbon dioxide, methane, and nitrous oxide has significantly contributed to global warming, leading to long-term environmental and societal impacts.

Disadvantages of Global Warming

1. Weather and Climate Changes

Rising global temperatures disturb weather systems and climatic patterns. If global warming continues at its current pace, the world may face:

• More frequent droughts, floods, and storms.
• Increased occurrence of climate events such as the El Niño effect.
• Shifts in rainfall and precipitation patterns, already evident in many regions.

2. Rising Sea Levels

Global warming raises sea levels due to two major factors:

• Thermal expansion of seawater as it warms.
• Melting of polar ice caps and Greenland’s ice sheets. This rise in sea levels threatens low-lying coastal regions and island nations, increasing the risk of displacement and loss of biodiversity.

3. Atmospheric Changes

Warming does not occur uniformly across all atmospheric layers:

• The troposphere (closest to Earth) is heating up.
• Higher layers such as the stratosphere and thermosphere are cooling. This imbalance affects global wind patterns, ozone stability, and weather conditions.