the greenhouse effect is when carbon in the air heats a planet 's atmosphere
greenhouse_effect is atmospheric_phenomenon. carbon_dioxide is greenhouse_gas. global_warming is heating. greenhouse_effect is heating_air. sunlight has effect_of_heating_earth global_warming is effecting_weather. global_warming is heating_air. greenhouse_gases is causing_world's_temperature_to_rise. partially_blocking_sunlight has effect_of_cooling_earth greenhouse_effect is weather.