Indeed, a computer projection showed that if just half of West Midlands ’ open space were planted with trees, air pollution from particles would be reduced by 20 percent.
Sesungguhnya, sebuah proyeksi komputer memperlihatkan bahwa jika setengah saja lahan terbuka West Midlands ditanami pohon, polusi udara dari partikel - partikel dapat dikurangi hingga 20 persen.