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A mysteriousblack cloudapproaches the earth-our planet s weather is severely affected. Throughout the rest of June and July temperatures rose steadily all over the Earth. In the British isles the temperature climbed through the eighties, into the nineties, and moved towards the hundred mark. People complained, but there was no serious disaster. The death number in the U. S. Remained quite small, thanks largely to the air-conditioning units that had been fitted during previous years and months. Temperatures rose to the limit of human endurance throughout the whole country and people were obliged to remain indoors for weeks on end. Occasionally air-conditioning units failed and it was then that fatalities occurred. Conditions were utterly desperate throughout the tropicsas may be judged from the fact that 7943 species of plants and animals became totally extinct. The survival of Man himself was only possible because of the caves and cellarshe was able to dig. Nothing could be done to reduce the hot air temperature. More than seven hundred million persons are known to have lost their lives. Eventually the temperature of the surface waters of the sea rose, not so fast as the air temperature it is true, but fast enough to produce a dangerous increase of humidity. It was indeed this increase that produced the disastrous conditions just remarked. Millions of people between the latitudes of Cairo and the Cape of Good Hope were subjected to a choking atmosphere that grew damper and hotter from day to day. All human movement ceased. There was nothing to be done but to lie breathing quickly as a dog does in hot weather. | 
