From Bjorn Lomborg's Cool It: The Skeptical Environmentalist's Guide to Global Warming at 17, 38:
How will heat and cold death change over the coming century? Let us for the moment assume--very unrealistically--that we will not adapt at all to the future heat. Still, the biggest cold and heat study from Europe concludes that for an increase of 3.6°F, "our data suggest that any increases in mortality due to increased temperatures would be outweighed by much larger short-term declines in cold-related mortalities." For Britain, it is estimated that a 3.6°F increase will mean two thousand more heat deaths but twenty thousand fewer cold deaths. . .
In total, about 1.4 million people will be saved each year, due to more than 1.7 million fewer deaths from cardiovascular diseases and 365,000 more deaths from respiratory disorders. This holds true for the United States and Europe (each with about 175,000 saved) as for the rest of the industrialized world. But even China and India will see more than 720,000 saved each year, with deaths avoided outweighing extra deaths nine to one.