If Earth moved suddenly to the Venus orbit, the average temperature would increase about one degree f per day. By day 5 the tropics (near sea level) would be too hot for humans outside for more than an hour, even in the shade.<br />In the next 5 days, millions of death's (from too hot and humid) because of failure of the supply of food, water and other essentials) would occur occur the next 5 days, during which people would need to leave the tropics, or face a life expectancy of days.<br />By the 11th day, the temperature would not be increasing as rapidly, but the rising temperature would continue increasing for centuries, eventually melting all the ice caps, and warming the ocean bottom water above 4 degrees c = 39 degrees f, which is the maximum density of water.<br />Eventually only the highest elevations near the center of Antarctica would be inhabitatal outside except when the 200 degrees f winds blow in from the rest of planet Earth. The colonys at Antarctica and the highest peaks near Mount Everest might survive long term, if they kept high technology. Neil