the.com/greenhouse gas
A molecule so good at trapping heat, it turned the sky into a blanket you can't take off.
means A gas in the atmosphere that absorbs and re-emits infrared heat, keeping warmth trapped near Earth's surface instead of letting it radiate off into space.
from The term borrows straight from the garden: a greenhouse lets sunlight stream in through glass, but traps the resulting heat inside rather than letting it escape, warming the air for the plants. Scientists in the 19th century, studying how certain atmospheric gases — carbon dioxide and water vapor especially — behaved the same way, trapping solar heat near the surface, adopted the name as a working analogy. It's worth noting the comparison is a bit loose: a real greenhouse mostly stays warm by blocking convection (stopping hot air from rising and drifting away), not by trapping infrared radiation the way these gases do. The metaphor stuck anyway, long before the science of climate change made the phrase a household name.
- worst offender
- water vapor traps most heat, but we don't control it
- co2 lifetime
- lingers in atmosphere for centuries, not years
- methane punch
- traps 80 times more heat than co2 over 20 years
- named ironically
- real greenhouses mostly block convection, not infrared