What is the Most Dangerous aspect of climate change to humans?

Desert Under Yellow Sunset
Photo by Fabio Partenheim


Doug McIntyre: Does this tell you that we have passed the tipping point?

Dave Callaway: I think so. I think so. And I think not only have we passed the tipping point, we’ve begun the snowball effect, to use a bad pun.

We’ve become sliding a lot faster down the other side.

And it’s going to manifest itself in some truly harsh climate conditions.

Doug McIntyre: Last year, you were talking about Phoenix.

Look at 110-degree days. There were 54 in Phoenix, 54 days where it was over 110.

In the county where Phoenix is located, 660 people died.

So it seems to me like part of what’s going to go along with these horrible changes is the number of people who get ill and die in the United States is going to start to hockey stick.

Dave Callaway: I think you’re right. The most dangerous part of climate change to humans is heat.

It’s not hurricanes or rising seas or even hail balls in Iowa. It’s heat.

People die from extreme heat.

There’s something that they call the wet bulb temperature, which is somewhere in the 120s Fahrenheit where it’s so hot that your body basically can’t manufacture perspiration.

And that’s when you essentially start to cook to death from the inside.

And so we’ve seen occasional temperature extremes hit wet bulb conditions in India, as you mentioned earlier, in South America, but never here in the US yet.

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