This is scientific American 60 second science. I'm Christopher Intagiyata.

A recent analysis predicts that 40% of the world's insect species could go extinct within a couple decades. The highest death tolls could be among butterflies, moths, bees and

dung beetles. Conspicuously absent from that list though are the house flies

because they may actually do better in a hotter world.

Under a warming scenario you would have a larger fly population which is able to hang around for a longer period of time.

Amy Greer, an epidemiologist and mathematical modeler at the University of Guelph in Ontario.

She says flies are also more active when it's warm,

meaning more chances to land on your picnic dips.

Queer's student Melanie Cousins, now a doctoral candidate at the University of Waterloo,

explains the effect on us.

With this increase in fly population and fly activity,

this may lead to more transmission of campelbacter.

The common foodborne illness, like the flies,

fluctuates with the seasons.

So with warmer temperatures,

can't pull backter will be able to replicate more efficiently.

Cousins modeled both the insect and bacterial trends

under different global warming scenarios and found that the

uptick in fly population numbers did not matter much but if warming truly

does increase fly activity then Campobacter cases in the Ontario-Canada area could more than double with a moderate

4 degree Fahrenheit rise in temperature by 2080. The results are in the journal Royal Society

Open Science. And these conclusions do come with many caveats.

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