by Maaz Khan Agence France-Presse   SIBI, Pakistan (AFP) – After hours toiling at construction sites in 50 degree-plus heat, Lakhmir Brahmani finds little relief from the sun other than a donkey-powered fan during the dog days of summer in one of Pakistan’s hottest cities. Scientists have warned that swathes of South Asia may be uninhabitable due to rising temperatures by 2100 — and in the desert community of Sibi in southwest Balochistan province, where […]