рџЊЌ What Is Climate Change?
Climate change refers to long-term alterations in Earth’s temperature, precipitation, wind patterns, and other aspects of the climate system. While natural factors have always influenced climate (such as volcanic eruptions, solar activity, and ocean circulation), the current phase of rapid global warming is primarily human-caused, driven by greenhouse gas (GHG) emissions from industrial activity, agriculture, and deforestation.
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🔥 The Greenhouse Effect
1. Natural Greenhouse Effect
•The Earth’s atmosphere contains gases (like carbon dioxide, methane, and water vapor) that trap some of the Sun’s heat, keeping the planet warm enough to sustain life.
•Without this effect, Earth’s average temperature would be about –18°C, not +15°C.
2. Enhanced Greenhouse Effect
•Human activities have increased the concentration of greenhouse gases, trapping more heat than before.
•This leads to global warming — a rise in the planet’s average surface temperature.