Questão 46 - UFU 1 Fase 2025/2

The U.S. Centers for Disease Control and Prevention and the National Oceanic and Atmospheric Administration’s National Weather Service launched a new website in April to forecast when people are especially at risk.

Thermometer readings and accompanying humidity levels aren’t the only factors determining safety when it comes to heat, says Aaron Bernstein, director of the National Center for Environmental Health at the CDC. Other important elements include elevated nighttime temperatures, which prevent the body from cooling down; whether hot days are outside of traditionally warm seasons; the duration of the heat (many days versus just one or two); and whether temperatures breach the top 5 percent of the record-high days for a given location.

“A hundred degrees in Boston is not the same as 100 degrees in Houston, when it comes to how heat affects health,” Bernstein says. The disparity flows in part because New England residents are not as accustomed to avoiding the outdoors during the hottest part of the day and because fewer likely have air conditioning in their homes, among other factors. The new forecast tool, called HeatRisk, takes all this into consideration when grading health impacts from heat across the U.S. The tool uses a five-color code ranging from green (no risk) to magenta (extreme risk).

Another important feature is it forecasts seven days. Currently, heat advisories from the National Weather Service are issued just 12 hours before dangerous temperature conditions emerge.

Disponível em: https://www.nationalgeographic.com/. Acesso em: 08 fev. 2025.

 

According to the text,

 

  I. Americans are probably the ones who suffer the most from extreme heat.

  II. Thermometer readings and humidity levels help determine safety in hot conditions.

  III. New England residents avoid the outdoors because they have air conditioning at home.

  IV. Heat Risk has proved to be an adequate tool to help people avoid heat exposition.

  V. Present warnings issued only 12 hours before dangerous temperature conditions are less effective.

 

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