Satellites See a Greener Northern Hemisphere

我是内蒙古大学的学生,上网浏览,读到这一条消息,非常兴奋。我们地区多年来治沙造林,造林防沙的工作取得了喜人的成绩。此短文告诉我们:satellite data show plants have been growing more vigorously since 1981。我特别高兴看到Beijing的字样。但是该消息又称:One suspected cause is risingtemperatures,possibly linked to the buildup of greenhouse gases in he atmosphere。我想对此句分析添加一词:forestation(人工造林)。