Dr. Mona Hanna-Attisha, right, on Capitol Hill in Washington, in February . 2016.
AP Photo/Andrew Harnik
Whistleblowers may stop bad behavior and protect others from harm.
Warning signs in the Newark Health Department after the city learned that lead service lines to houses still were contaminating water.
Newark is the latest US city to struggle with high lead levels in drinking water. Ending this public health crisis will require more money and enforcement, plus stricter water testing standards.
Is your community’s water tainted with lead? The data might not have been reported.
Flint's highest recorded lead levels were typical for water systems that report problems. What's more, a number of cities haven't reported their lead issues.
Brandon Fant, left, gets his blood tested for lead poison levels by Lashae Campbell at a clinic in Flint, Michigan.
The children who suffered lead poisoning as a result of the Flint water crisis of 2014 are likely to struggle academically and socially as a result, an expert on treating lead-poisoned children argues.
How long has that water already been in the system?
In many municipalities, aging water infrastructure is serving fewer people than it was built to accommodate. Out of sight has meant out of mind – but resulting changes in water quality may affect safety.
The problem of unsafe drinking water afflicts poor communities most.
Just as America's highways, sewage systems and water pipes need fixing, so does the growing gap between rich and poor. Trump and the Democrats could use that money to address both.
A SenseTime artificial intelligence system monitors an intersection in China.
AI can help make government more efficient – but at what cost? Citizens' lives could be better or worse, based on how the technology is used.
Elon Musk may be on the hot seat for political donations and slurs against a British cave rescuer in Thailand, but his offer to pay for water filters in Flint, Mich., is laudable.
(AP Photo/Carlos Osorio)
If Elon Musk can help achieve safe drinking water more quickly for every home in Flint, Mich., then he should be lauded. Water is life.
All bottled water comes from somewhere.
Nestle pays the state a pittance in exchange for its water at a time when public awareness of water issues is rising.
Toppled road sign for a closed water distribution center in Flint, Mich.
Michigan officials have ended distribution of free bottled water in Flint, but many residents believe the city's water crisis is not over and have lost all trust in government.
Canada has done a remarkable job of reducing lead in people’s bodies. But the experience of Flint, Mich. – where children were exposed to toxic levels of lead – teaches us to remain cautious. Here, Flint citizens watch testimonies before the House Oversight and Government Reform Committee, in Washington during 2016.
(AP Photo/Andrew Harnik)
Reduced lead exposure has made us smarter and healthier. Could changes in regulatory agencies across North America endanger this?
Colin Kaepernick, centre, and his San Francisco teammates kneel during the national anthem before an NFL football game in 2016.
(AP Photo/Marcio Jose Sanchez, File)
Much of the discussion about "Take a Knee" has overlooked the issues of justice and social exclusion, and especially environmental matters. That's something to think about during the Super Bowl.
Demonstrators at a 2010 Toronto rally protesting the mercury contamination of the Wabigoon-English waterway in northwestern Ontario carry long blue banners meant to represent a river.
(THE CANADIAN PRESS/Chris Young)
The declared end of Flint, Mich., contaminated water crisis echoes similar claims worldwide. Evidence shows victims of past and ongoing water crises, especially Indigenous people, continue to suffer.
The water tower in Flint, Michigan, where lead-contaminated water led to a health crisis in 2014.
AP Photo/Carlos Osorio
Congressional inability to devise a health care plan for the US is not the only impediment to good health care. Contaminated water pipes and old bridges are also roadblocks.
Ethiopian girls carrying water.
According to a new UN report, more than two billion people around the world do not have access to clean, safe water in their homes. Most of the work of getting water falls to women and girls.
Hey big spender – what will your project actually do for the public?
Most U.S. environmental organizations are less diverse than this group of Californian environmental justice leaders.
How could green groups attract more diverse volunteers? Maybe they could put more time and energy into outreach toward the people most affected by environmental injustices.
The Flint water crisis was one of the few cases of environment-related social injustices that reached national attention in recent years.
AP Photo/Andrew Harnik
Addressing social and health inequalities from pollution is no longer a priority at the EPA. What did the Office of Environmental Justice do and what will happen if it's shut down?
When scientists stand up, do they lose standing?
In the wake of the Flint water crisis and with a new notably anti-science president, U.S. scientists are reevaluating how to navigate the tension between speaking out and a fear of losing research funding.
Donald Trump meets with professors and students at the Cleveland Arts and Social Sciences Academy in Cleveland, Ohio.
Scientists must bear some responsibility for the post-truth era and the current crisis in democracy.