### Instruction:

Extract the cause and effect entities from the following sentence:
Depending on surface emissivity and on downwelling longwave radiance (e.g. a cold clear sky vs. a warm humid atmosphere), the reflection term in the above equation can cause differences of several degrees Celsius [RD-84]

### Assistant:

KEYWORD: on
VARIABLE: the reflection term in the above equation
AND: and
CONDITION: can cause differences of several degrees Celsius
NOT_RELEVANT: [RD-84]
CAUSE_1: surface emissivity
CAUSE_2: downwelling longwave radiance
EFFECT_1: the reflection term in the above equation can cause differences of several degrees Celsius

