Let’s go step by step to understand what’s happening in this diagram.
Step 1: Sunlight comes from the Sun and travels through space to Earth.
→ The diagram shows orange arrows going from the Sun to Earth.
→ This sunlight passes through the atmosphere (the air around Earth) without being blocked much.
→ When it hits the Earth’s surface, it warms up the land, oceans, and everything on the planet.
✔ That’s point #1.
Step 2: After the Earth gets warm, it doesn’t stay hot forever — it gives off heat.
→ But instead of giving off visible light like the Sun, Earth gives off invisible heat called “infrared radiation” (or IR).
→ You can think of it like how your body feels warm even if you’re not glowing — you’re radiating heat.
✔ That’s point #2.
Step 3: Most of that infrared radiation escapes into outer space.
→ Imagine throwing a ball upward — most of the time, it goes far away.
→ Similarly, most of Earth’s heat (IR) flies out into space, which helps cool the planet down.
✔ That’s point #3.
Step 4: BUT — some of that infrared radiation doesn’t escape.
→ Certain gases in the air — like carbon dioxide (CO₂), water vapor, methane — act like a blanket.
→ They trap some of the heat trying to leave Earth.
→ This trapped heat keeps Earth warm enough for plants, animals, and us to live. Without it, Earth would be freezing!
✔ That’s point #4 — this is the natural greenhouse effect.
Step 5: Now here’s the problem — humans are adding MORE CO₂ to the air (from cars, factories, burning coal/oil/gas).
→ More CO₂ = thicker blanket = more heat gets trapped.
→ So now, less heat escapes → Earth gets warmer than it should.
→ This extra warming is called the “Enhanced Greenhouse Effect.”
✔ That’s point #5 — and it’s causing global warming and climate change.
So putting it all together:
The diagram explains how Earth naturally stays warm thanks to greenhouse gases — but when we add too much CO₂, we make the planet overheat.
Final Answer:
The enhanced greenhouse effect happens when increasing levels of CO₂ in the atmosphere trap more heat, causing Earth’s surface and atmosphere to warm up beyond normal levels.
Parent Tip: Review the logic above to help your child master the concept of greenhouse effect diagram worksheet.
