New Delhi, Aug. 3 -- Climate change has increased childhood malaria and could continue to do so in southern and East Africa where communities are less experienced at tackling the disease, while reducing the risk in today's hotspots as temperatures become too high for mosquitoes, according to a new study published in Nature. The study-The past and future impact of climate change on childhood malaria in Africa- quantifies climate change's historical and future impact in sub-Saharan Africa's children, where most cases and deaths occur. It finds that climate change has slightly increased malaria overall. Looking ahead, rising temperatures could increase the malaria risk in southern and East Africa while reducing it where it is most rampant toda...