这些影响对于这个星球上生活最贫困的那些人群所带来的打击显然最大，尽管这些“生活在底层的十亿人口”已经承受了疾病、贫困、战争冲突和营养不良等所带来的沉重负担。
These impacts will clearly hit the planet’s worst-off inhabitants hardest: the “bottom billion” who already bear the heaviest burden of disease, poverty, conflict and malnutrition.