图片: LIC/Flickr 无论采用何种方法度量,空气污染造成的影响都很惊人。最新研究显示,全世界空气污染使得普通人的平均预期寿命缩短了1.8岁,也是导致全球每年约880万人早逝的主要原因——这一数字是之前估测数字的两倍,空气污染因此而成为当今世界人口死亡的主要致因之一。

Javier Morales Sarriera, Gurpreet Singh Sehmi |

Photo: LIC/Flickr No matter how you measure it, the impact of air pollution is startling. According to new research, air pollution worldwide cuts life expectancy by 1.8 years for an average person…

Javier Morales Sarriera, Gurpreet Singh Sehmi |

Globally, 56 percent of children live in countries with Human Capital Index (HCI) scores below 0.5. As these countries gear up to improve their human capital outcomes, it is vital to set a target…

Zelalem Yilma Debebe |

Somalis have traditionally engaged in pastoralism: a form of livestock production in which subsistence herding is the primary economic activity relying on the movement of herds and people. (Photo…

Zaineb Majoka |

consider this picture MOOCs -- massively open online courses of the sort that can simultaneously enroll thousands, even tens of thousands, of learners simultaneously -- have been a hot topic of…

Michael Trucano |

As countries all across Africa recognize International Day of the African Child today, I thought it would be a timely opportunity to blog about the progress of under-five child mortality rates…

Dereje Ketema Wolde |

I am standing in a camp near Dollo Ado, in southern Ethiopia near the border with Somalia. The camp is an open site on hard rocky land: the only vegetation is grey, thorny scrub. An endless wind…

Greg Toulmin |

I recently visited Dadaab, Kenya’s third-largest and fastest-growing city, having grown from 250, 000 residents a few years ago to more than 400, 000 today. Dadaab is not an ordinary Kenyan city.…

Johannes Zutt |