Change in IR Emission to Space (contÕd)
¥AFTER GHG increase  IN>OUT               Eventual solution IN=OUT
SH
Ahrens, Fig. 2.21
Temperature
4. Atmosphere warms untilÉ
5. Temperature of IR emission to space increase to original temperature
6. IR emission to space increases until it matches the original IR emission before GHG increases
SH
Ahrens, Fig. 2.21
Temperature
1. Altitude of IR emission to space rises
2. Temperature of IR emission to space decreases
3. IR emission to space decreases
because of colder emission temperature