the greenhouse effect is when carbon in the air heats a planet 's atmosphere
greenhouse_effect is atmospheric_phenomenon. greenhouse_effect is not heating_air. greenhouse_effect is not weather. greenhouse_gases is causing_world's_temperature_to_rise. greenhouse_effect is not atmospheric_phenomenon. greenhouse_effect is weather. sunlight has effect_of_heating_earth greenhouse_effect is heating_air. sunlight has not effect_of_heating_earth greenhouse_gases is not causing_world's_temperature_to_rise.