Toward a Quantitative Estimate of Future Heat Wave Mortality under Global Climate Change

Background

Climate change is anticipated to affect human health by changing the distribution of known risk factors. Heat waves have had debilitating effects on human mortality, and global climate models predict an increase in the frequency and severity of heat waves. The extent to which climate change will harm human health through changes in the distribution of heat waves and the sources of uncertainty in estimating these effects have not been studied extensively.

Objectives

The people estimated that the future excess mortality attributable to heat waves under global climate change for a major U.S. city.

Methods

They used a database comprising daily data from 1987 through 2005 on mortality from all nonaccidental causes, ambient levels of particulate matter and ozone, temperature, and dew point temperature for the city of Chicago, Illinois. We estimated the associations between heat waves and mortality in Chicago using Poisson regression models.

Results

Under three different climate change scenarios for 2081–2100 and in the absence of adaptation, the city of Chicago could experience between 166 and 2,217 excess deaths per year attributable to heat waves, based on estimates from seven global climate models. We noted considerable variability in the projections of annual heat wave mortality; the largest source of variation was the choice of climate model.

Conclusions

The impact of future heat waves on human health will likely be profound, and significant gains can be expected by lowering future carbon dioxide emissions.

We have to save this planet the best way we can do it. EE.UU have been afected by the climate change and a lots of people has been killed also by this.It can be possible that the next one will be you, it is very important to save our planet.Help the planet to be a better place to live.

Guillermo Jiménez García-Herrera

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