Austin American-Statesman

My eighth-graders know climatolog­y better than most Austin congressme­n

- JULI BERWALD, AUSTIN

Like so many of my colleagues, I have been consumed by the reality that Hurricane Harvey’s destructio­n was worsened by climate change.

Penn State climatolog­ist Michael Mann has explained that climate change had a measurable impact on Harvey’s intensity and damage. Rising sea levels caused storm surges to be higher. Rising sea temperatur­es drasticall­y increased the strength of the storm and caused more moisture to be in the air, in turn causing more flooding. The message from the research is clear: Climate change made Harvey’s destructio­n worse.

Teaching climate change to eighth-graders in Texas is not as hard as you might expect. Every year, my students develop the same conclusion as 97 percent of climate scientists have. In my class, students are not taught what to believe simply because science says so; instead, they are presented with the evidence and are taught how to use a scientific framework of thinking to develop their own conclusion­s.

For example, we conduct an experiment that asks the question: “Do increased concentrat­ions of carbon dioxide in Earth’s atmosphere increase global temperatur­es?” We develop a model of the Earth’s greenhouse effect by filling plastic bottles with different concentrat­ions of carbon dioxide and place the bottles under a heat lamp. As my students take careful measuremen­ts of the bottles’ temperatur­es, they begin to clearly see the relationsh­ip between carbon dioxide concentrat­ions in the atmosphere and the rate of temperatur­e rise.

Science teachers like me teach students how to think, not what to think. Through replicatin­g the work of practicing scientists by developing models, testing hypotheses, analyzing data and writing scientific explanatio­ns, my students reinforce the basic principle of science that to get valid results: We must be able to reproduce fellow scientists’ conclusion­s. Through numerous investigat­ions, the objective truth we arrive at year after year in my classroom is that our planet’s climate is changing primarily due to human activity.

I am astounded by the disturbing reality that while my eighth-graders can do this, six out of seven members of Congress who represent Austin deny climate change.

The most notable name among them happens to be that of the representa­tive for my district, Lamar Smith. He chairs the House Committee on Science, Space, & Technology. Yet, despite holding a position that would assume he has a firm grasp on establishe­d scientific understand­ings, he employs debunked arguments from climate change denialists.

Climate change, he says, “is due to a combinatio­n of factors, including natural cycles, sun spots and human activity. But scientists still don’t know for certain how much each of these factors contribute­s to the overall climate change that the Earth is experienci­ng.”

In fact, scientists do know the level of contributi­on for each of the aforementi­oned factors. They have conclusive­ly proven that human activity exceeds all other factors by a large margin. Smith has spent much of his tenure on the committee actively ignoring and underminin­g the work of climate scientists around the globe through such actions as accusing government agencies of doctoring scientific data to support false claims, defunding NASA’s earth science research, publicly shaming climate scientists in committee hearings and writing op-eds that do not reflect the scientific consensus.

A quote from Carl Sagan that has hung on my classroom door for the past six years reads: “It is suicidal to create a society that depends on science and technology in which no one knows anything about science and technology.”

The conversati­on we’re having in this country is the wrong one. Instead of debating whether climate change exists and if humans are to blame, we should be ferociousl­y debating the political solutions of how to respond to climate change. We don’t have time to wait for Austin’s scientific­ally illiterate representa­tives to understand how science works while they continue to ignore the warning signs. Every minute spent in denial further delays the solutions we so desperatel­y need. Re: Sept. 1 article, “‘Building

The devastatio­n caused by Hurricane Harvey is heartbreak­ing and terrifying. My heart goes out to our fellow Texans who have lost so much in this terrible storm. I ask our elected officials to please support them in every way possible.

One thing I want to ask these leaders to do is stop ignoring the role of climate change. Especially in the wake of this tragedy, our leaders must recognize that warmer ocean waters fed this horrendous storm because warmer air can hold more moisture, and that extra moisture resulted in unpreceden­ted and catastroph­ic rain.

Climate change may not have birthed this storm, but it nurtured it and made it worse. We have technical solutions that produce low-carbon energy and economic solutions such as a carbon fee and dividend to fight climate change. But first, we need our leaders to accept the obvious: that climate change was a culprit.

 ?? DAVE CREANEY / AMERICAN-STATESMAN 2016 ?? The Texas African American History Memorial, which honors African-American contributi­ons to Texas history, is unveiled last November at the Capitol.
DAVE CREANEY / AMERICAN-STATESMAN 2016 The Texas African American History Memorial, which honors African-American contributi­ons to Texas history, is unveiled last November at the Capitol.
 ?? RODOLFO GONZALEZ / ?? Austin high school students conduct experiment­s at the Austin Water Center for Environmen­tal Research at Hornsby Bend.
RODOLFO GONZALEZ / Austin high school students conduct experiment­s at the Austin Water Center for Environmen­tal Research at Hornsby Bend.

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