惯性聚合 高效追踪和阅读你感兴趣的博客、新闻、科技资讯
阅读原文 在惯性聚合中打开

推荐订阅源

aimingoo的专栏
aimingoo的专栏
Engineering at Meta
Engineering at Meta
有赞技术团队
有赞技术团队
博客园_首页
Apple Machine Learning Research
Apple Machine Learning Research
Vercel News
Vercel News
G
Google Developers Blog
Blog — PlanetScale
Blog — PlanetScale
IT之家
IT之家
MongoDB | Blog
MongoDB | Blog
Y
Y Combinator Blog
B
Blog
The GitHub Blog
The GitHub Blog
M
MIT News - Artificial intelligence
OSCHINA 社区最新新闻
OSCHINA 社区最新新闻
Stack Overflow Blog
Stack Overflow Blog
C
Check Point Blog
Microsoft Azure Blog
Microsoft Azure Blog
D
DataBreaches.Net
I
InfoQ
Recent Announcements
Recent Announcements
阮一峰的网络日志
阮一峰的网络日志
腾讯CDC
H
Help Net Security

Latest Daily News Lessons | PBS News Hour Classroom

Student Reporting Labs: USWNT legend Briana Scurry on the future of women's soccer Student Reporting Labs: Celebrating everyday life in D.C. Thomas Jefferson's complicated legacy 250 years after the Declaration of Independence Breakthroughs in Chinese AI models threaten U.S. lead in tech race America at a Crossroads: A look at America's founding from the room where independence was declared America at a Crossroads: What political satire can reveal about the strength of a democracy Police say Flock cameras help solve crimes, but critics call them an invasion of privacy The health risks of wildfire smoke across the Midwest and Mid-Atlantic National Youth Poet Laureate Daniel Umemezie on using his words to bridge worlds 'Post-literate age': Why fewer Americans are reading for pleasure Ousted Election Assistance Commission chair on Trump's effort to control voting What we know about the cyclosporiasis outbreak linked to produce Dry winter leaves farmers along Colorado River facing greater water shortages Lindsey Graham's career and influence on American politics Trump fires election commission members in latest attempt to control voting process A look at the new regulations and incentives in the housing bill set to become law Some Medicare beneficiaries eligible for weight loss drug discounts Immigration judge says Trump administration's firings and policies are 'disheartening' How hospitals are using the arts to help patients recover Recovery efforts underway in Venezuela following earthquakes The growing dangers of record heat waves like the one engulfing July 4th celebrations How climate change and rising seas endanger historic sites like Jamestown, Virginia America 250: A student series on a nation in progress Supreme Court transforms campaign finance rules, lifting limits on party spending How the birthright citizenship decision impacts Trump's immigration agenda Walter Isaacson on what he calls 'The Greatest Sentence Ever Written' What the Supreme Court rulings mean for presidential power Anti-ICE protesters sentenced to decades in prison in latest crackdown on dissent Why more school districts are limiting screen time for students Black Opera Project celebrates resilience and richness of the Black American experience
Trump administration rolls back limits on chemicals in dr...
2026-05-21 · via Latest Daily News Lessons | PBS News Hour Classroom

NOTE: If you are short on time, watch the video and complete this See, Think, Wonder activity: What did you notice? What did the story make you think about? What would you want to learn more about?

SUMMARY

The Trump administration is moving to roll back limits on some PFAS, the toxic “forever chemicals” found in the drinking water of millions of Americans. The Biden-era rule set the first national drinking-water limits for several PFAS compounds. But industry groups argued the standards were legally flawed and too costly to meet. William Brangham reports.

View the transcript of the story.

News alternative: Check out recent segments from the NewsHour, and choose the story you’re most interested in watching. You can make a Google doc copy of discussion questions that work for any of the stories here.

key terms

ecosystem — an environment formed by the relationship between living things such as plants and animals, and non-living things such as rocks, soil and waterways

WARM-UP QUESTIONS

  1. What are PFAS?
  2. When were restrictions first put on PFAS chemicals in water?
  3. Why is the Trump administration rolling back the restrictions?
  4. How are PFAS chemicals potentially dangerous?
  5. Who is affected by PFAS chemicals?

ESSENTIAL QUESTIONS

This story notes that even many of President Trump's supporters hope to limit PFAS from PFAS chemicals. Why do you think his administration is rolling back regulations if even his supporters want limits on the chemicals in drinking water?

Media literacy: Examine the graphic below. Why do you think this infographic was included? What important questions does it raise, and what other information do you think it would be useful to include?

WHAT STUDENTS CAN DO

Examine the image below, courtesy of the City of Riverside, California. First, discuss — what everyday household items do you use that contain PFAS?

These are a few examples of products that can contain PFAS. Graphic provided by City of Riverside, California

Next, read the following article on the ways light can be used to break down PFAS. After reading the article, design a system to help break down the PFAS in one or more of the items you chose from the chart. Sketch out a system, invention or idea for treating the items you use for PFAS before they go into landfills. As a class, discuss which solutions are the lowest cost and easiest to try out!

"Researchers have developed a way to break down long-lasting PFAS compounds using light"

Foam swirls in the harbor as firefighters douse a smouldering dock fire that broke out on Monday evening and burned about 150 feet (45 meters) of a wharf area at the Port of Los Angeles

Foam swirls in the harbor as firefighters douse a smouldering dock fire that broke out on Monday evening and burned about 150 feet (45 meters) of a wharf area at the Port of Los Angeles, California September 23, 2014. Thick smoke from a smoldering fire started by a welder's torch at the Port of Los Angeles was preventing the movement of containers at the facility on Tuesday, because air conditions were too harmful for dock workers, officials said.REUTERS/Lucy Nicholson (UNITED STATES - Tags: DISASTER TPX IMAGES OF THE DAY)

Fill out this form to receive our weekly newsletter or share your thoughts on Classroom’s resources.