More ethanol consumption then "contributes to planet-warming emissions," and the cycle intensifies. The good news in the short term is that "humidity from crops typically cuts back in September ...

All three of orbital cycles — called Milankovitch cycles — impact African climate on long geologic timescales, but the cycle with the most influence on the rains in Africa is the "wobble ...

Lethal heat combined with humidity proved deadly ... In 25 years time, the timing of Hajj will cycle back to peak summer in August and September. At 2°C of warming, the risk of heatstroke ...