An American academic thinks that global warming will reduce the birth rate in the US by more than 100,000 by the end of the 21st century due to couples having less sex because the weather will be warmer.

I guess he never heard of air conditioning.

ABC Australia:

Temperature impacts the sexual patterns of human beings for two reasons, according to Professor Barreca.

One reason he gave was that human beings did not want to exert themselves physically in hot weather, due to possible discomfort.

The second reason was more scientific.

"The effect of temperature on the production of sperm — that's been shown to be pretty strong in animals," Professor Barreca said.

"When you expose a bull to high temperatures, sperm motility and sperm count fall right off."

He said with the onset of climate change and global warming, the implications could grow.

"According to a state of the art global circulation model, there is going to be about 90 hot days per year by the end of the 21st century — that's about 60 more days than we currently experience," he said.

"Using our estimates, we project that the number of births will fall by about 107,000 per year in the United States by the end of the 21st century."

He said this implied climate could have an impact on the seasonal variation of births, and ultimately change when we have to attend the most birthday parties.

Is there nothing that global warming won't destroy? Are we doomed to a sexless future where "Not tonight, darling. I have a headache" is replaced with "Get your hands off me. It's too hot"?

Perhaps nudism will enjoy a surge of popularity. We'd have flip-flop bubbles, bikini booms. Skimmers would come roaring back.

Global warming could lead to a genuine economic boom - too bad we'll be having less sex.