全球气温上升英语

乱伐树木 illegal deforestation / unrestrained deforestation / uncurbed deforestation 不加处理排放废气 unfiltered exhaust 土地沙化 Land Sandification / land desertification(沙漠化) 空气质量差 substandard air quality / air quality not meeting requirements / bad air quality全球气温变高 global warming