greenhouse gas concentration
/ˈɡɹiːnhaʊs ˈɡas kˌɒnsəntɹˈeɪʃən/
n
English · greenhouse gas concentration中文 · 温室气体浓度Español · concentración de gas de efecto invernaderoFrançais · concentration des gaz à effet de serre
意味：Increasingly abundant greenhouse gases reflect more and more infrared rays toward the Earth’s surface, accelerating global warming.