Global Warming
Global warming is the long-term rise in Earth’s average temperature, mainly caused by human activities.
🔥 Main Causes

1. Burning fossil fuels (coal, oil, gas) → releases carbon dioxide (CO₂)
2. Deforestation → fewer trees to absorb CO₂
3. Industries & vehicles → greenhouse gas emissions
4. Agriculture → methane from livestock

These gases trap heat in the atmosphere (called the greenhouse effect).