Too Much Light has Far-Reaching Effects on Environment and Human Health

Hunter Savery, Capital News Service • January 9, 2024


Seeing stars is harder every year. This should not surprise residents of Washington and Baltimore, where it is often difficult to see much more than the moon.

 

Although it may not garner the same popular attention as other forms of environmental degradation, light pollution has far-reaching negative effects on Earth’s ecosystems and human health.

 

Astronomers at the National Science Foundation’s NOIRLab (the National Optical-Infrared Astronomy Research Laboratory) estimate that light pollution levels increase by 10% every year. Children born today in a city where 250 stars can be seen at night will only be able to see 100 by the time they turn 18.

 

Connie Walker, a scientist at NOIRLab, told Capital News Service that increasing light pollution represents a lost cultural heritage.

 

“Just think about [Gustav] Holst in creating the musical composition, ‘The Planets’, or [Vincent] Van Gogh, who did ‘The Starry Night.’ I mean, this is not just astronomy, it's art. It's if we basically cut ourselves off from access to the night sky, we're really damaging the opportunities for future generations and the inspiration that provides,” Walker said. “And so it's like cutting off an appendage or something, we're losing part of ourselves. So it's really a kind of imperative for us to take action and try to protect the night sky.”

 

What some may not realize when viewing paintings like “The Starry Night” or “The Night Cafe” is that during Van Gogh’s time, the Milky Way really could be seen from the city streets at night. This is how it was for most of human history; change came with the explosion of electricity in the 20th century.

 

However, light pollution is a serious threat beyond cultural heritage. It disrupts our sleep cycles and circadian rhythms, which can put individuals at greater risk of developing several cancers, according to researchers at Harvard University.

 

Sleep deprivation also interferes with people’s work and social lives and puts individuals at increased risk for heart disease, kidney disease, high blood pressure, obesity, and depression.

 

Millions of Americans miss out on much-needed sleep. The Centers for Disease Control and Prevention estimate that at least one in three Americans does not get enough sleep.

 

For animals, the consequences of light pollution can be even more dire.

 

Many animals use the moon and stars to guide their way in the night. Sea turtle hatchlings use moonlight to find their way to the ocean, but in light-polluted areas, the newborns become disoriented and may actually crawl inland. The Florida Fish and Wildlife Conservation Commission estimates that light pollution results in thousands of sea turtle deaths every year.

 

Many communities from Florida to the Carolinas have ordinances requiring people living on the coast to turn off lights during sea turtle nesting season.

 

Light pollution is also a likely culprit in what some scientists have called the “insect apocalypse.”

 

In recent years, global insect populations have plummeted, with as many as 40% of species around the globe experiencing declines. For example, species that rely on bioluminescence, like fireflies, are unable to find mates because of competing lights.

 

Other species that rely on the moon and stars for guidance, like moths, can spend the entire night in disoriented wandering. Some species mistake light bouncing off pavement for the surface of a body of water and mistakenly lay their eggs in the street.

 

One of the challenges to assessing light pollution’s growth is that it doesn’t show up well in satellite data.

 

It is difficult to do longitudinal studies because of the dramatic changes in satellite imaging quality over the years. Even modern sensors are largely unable to pick up the blue light that is the most biologically disruptive component of light pollution.

 

This is why NOIRLab created the Globe at Night Program, which collects light data from ordinary people around the world. Participants rate their ability to see stars in the sky from wherever they find themselves.

 

Over 277,000 measurements have been submitted since the program began collecting data in 2006. The submissions have been compiled into interactive maps and datasets available to the public that give a better snapshot of light pollution than standard satellite imagery.

 

Reducing light pollution is far from a Herculean task, according to Jim Dougherty, an environmental attorney and president of the International Dark-Sky Association’s D.C. Chapter. One easy fix is making sure that lights are properly covered so that the light is aimed down and not shooting off towards the night sky.

 

“Here in D.C., the light fixture that we love to hate is the globe, which sends maybe 70% of its light straight up into the sky and serves no purpose whatsoever,” Dougherty told CNS. “That’s what we do in our homes, right? We don’t have bare light bulbs over the dining room table, we have lamps shades and covers.”

 

Alongside better covered lights, the IDA advocates for dimmer and warmer lights overall. While some cities such as Pittsburgh have moved towards dimmer lights, Baltimore has been growing brighter with an increased number of electronic billboards.

 

In Washington last month, the Smithsonian Institution’s National Museum of Natural History launched an exhibit titled “Lights Out: Recovering Our Night Sky.” The temporary exhibit features over 100 photographs, 250 objects, and interactive experiences underscoring the importance of nighttime darkness.

 

For many, brighter streets are associated with safety and crime prevention.

 

“That’s a common reaction. And there’s very little truth to it,” Dougherty said. In fact, studies have shown that brighter streets have little effect on crime. One study in Chicago found that increasing the brightness of alleyways corresponded with a significant increase in crime.

 

 

Capital News Service is a student-powered news organization run by the University of Maryland Philip Merrill College of Journalism. For 26 years, they have provided deeply reported, award-winning coverage of issues of import to Marylanders.

 

Common Sense for the Eastern Shore

By CSES Staff November 4, 2025
Voters in Hurlock have delivered sweeping changes in this year’s municipal election, as Republican and GOP-aligned candidates won key races there. The results mark a setback for Democrats and a significant political shift in a community that has historically leaned Democratic in state and federal contests. The outcome underscores how local organizing and turnout strategies can have an outsized impact in small-town elections. Analysts also suggest that long-term party engagement in municipal contests could shape voter alignment in future county and state races. Political analysts warn that ignoring municipal elections and ceding them to the GOP could hurt the Maryland Democratic Party in statewide politics. Turnout increased by approximately 17% compared with the 2021 municipal election, reflecting heightened local interest in the mayoral and council races. Incumbent Mayor Charles Cephas, a Democrat, was soundly defeated by At-Large Councilmember Earl Murphy, who won with roughly 230 votes to Cephas’s 144. In the At-Large Council race, Jeff Smith, an independent candidate backed by local Republicans, secured a 15-point win over Cheyenne Chase. In District 2, Councilmember Bonnie Franz, a Republican, was re-elected by 40 percentage points over challenger Zia Ashraf, who previously served on the Dorchester Democratic Central Committee. The only Democrat to retain a seat on the council was David Higgins, who was unopposed. The Maryland Republican Party invested resources and campaign attention in the Hurlock race, highlighting it on statewide social media and dispatching party officials, including Maryland GOP Chair Nicole Beus Harris, to campaign. Local Democrats emphasized support for Mayor Cephas through the Dorchester County Democratic Central Committee, but the Maryland Democratic Party did not appear to participate directly.
By CSES Staff November 4, 2025
In what political observers are calling a clear break from Maryland’s moderate Republican establishment, Wicomico County Executive Julie Giordano chose former Gov. Bob Ehrlich — not former Gov. Larry Hogan — as the guest of honor at her re-election fundraiser in late October. Billed as Giordano’s annual Harvest Party, her event drew conservative activists from across the lower Eastern Shore and featured Ehrlich as keynote speaker. This was immediately read by insiders as a signal that Giordano will embrace the party’s right-wing base ahead of 2026, distancing herself from Hogan’s more centrist, bipartisan image. “Bringing in Bob Ehrlich instead of Larry Hogan wasn’t accidental,” one longtime Republican strategist said. “It shows Giordano wants to plant her flag with the MAGA-aligned wing of the party, the same voters who now dominate Maryland’s Republican primary base.” Hogan, who has hinted at another run for governor, was notably absent from this year’s Tawes Crab and Clam Bake in Somerset County, a high-profile gathering long considered essential for statewide contenders. Coupled with Giordano’s public alignment with Ehrlich, Hogan’s absence has fueled speculation that his influence within Maryland’s GOP is slipping. Those doubts were amplified by new polling data. A statewide survey commissioned by the Baltimore Banner found Gov. Wes Moore (D) leading Hogan 45% to 37% in a hypothetical 2026 matchup, with 14% undecided. The poll, conducted by phone and web from Oct. 7–10 among more than 900 registered voters, carries a margin of error of 3.2 percentage points. The results suggest that while Hogan remains popular among moderates and independents, Moore continues to hold a firm advantage statewide, particularly among Democrats and younger voters. Giordano’s decision to align herself with Ehrlich rather than Hogan further illustrates the ideological divide defining Maryland Republicans heading into 2026. As the party drifts further to the right, analysts say Hogan’s brand of pragmatic centrism may no longer have a natural home in today’s GOP. For now, Ehrlich’s appearance in Salisbury is being seen as a symbolic moment, one that cements Giordano’s status as a leading figure in the state’s Trump-aligned movement and underscores how quickly the political winds have shifted. For Hogan, once seen as the Republican best positioned to reclaim the governor’s office, that shift may mark the end of an era.
By Jan Plotczyk November 4, 2025
Can Maryland create a new congressional map that will flip the state’s sole Republican district to the Democrats? Gov. Wes Moore has created a Governor's Redistricting Advisory Commission to consider mid-cycle redistricting and Maryland has jumped into the redistricting fray. The commission will conduct public hearings, solicit public feedback, and present recommendations to the governor and Maryland General Assembly. “My commitment has been clear from day one — we will explore every avenue possible to make sure Maryland has fair and representative maps,” said Moore. “And we also need to make sure that, if the president of the United States is putting his finger on the scale to try to manipulate elections because he knows that his policies cannot win in a ballot box, then it behooves each and every one of us to be able to keep all options on the table to ensure that the voters’ voices can actually be heard .” Moore’s commission is one of those options — a response to Trump’s call to Republican-led states to create more GOP House districts before the 2026 midterm elections. Three GOP states — Texas, Missouri, and North Carolina — have completed a Trump gerrymander for a gain of seven seats and three more states — Indiana, Utah, and Ohio — could create new maps with a total of four additional Republican seats. That would make 11, should they withstand challenges. Democratic-led states made a lot of noise at first about countering these GOP efforts, but only California and Virginia have campaigns for new maps underway. California wants to flip five seats and Virginia hopes for up to four. Optimistically, that could add up to as many as nine. Maryland’s goal would be to add one Democratic seat. Other states on both sides could soon follow, in some cases taking advantage of existing redistricting deadlines or ongoing litigation. Maryland State Senate President Bill Ferguson (D-Balto City) is not in favor of mid-cycle redistricting, calling it too dicey. “Simply put, it is too risky and jeopardizes Maryland’s ability to fight against the radical Trump administration. At a time where every seat in Congress matters, the potential for ceding yet another one to Republicans here in Maryland is simply too great,” Ferguson wrote in a letter to Senate Democrats. Rep. Andrew P. Harris (R-MD01), whose district would be targeted by redistricting, called the effort "the most partisan thing you could do." He whined, “It just wouldn’t be fair.” Harris warned that any redistricting could backfire on the Democrats. “We will take this to court, it will go as high as necessary, and in the end, a judge could draw a map that actually has two or three Republican congressmen,” Harris said. “I’d caution the Democrats, be careful what you wish for.” Harris and his wife, Maryland GOP Chair Nicole Beus Harris, have perhaps already worked out a strategy. The Governor’s Redistricting Advisory Commission, last constituted by Gov. Martin O’Malley in 2011, will begin its work this month. The five-member commission includes: Chair: Senator Angela Alsobrooks Senate President Bill Ferguson or designee Speaker Adrienne A. Jones or designee Former Attorney General Brian Frosh Cumberland Mayor Ray Morriss “We have a president that treats our democracy with utter contempt. We have a Republican party that is trying to rig the rules in response to their terrible polling,” said Sen. Alsobrooks. “Let me be clear: Maryland deserves a fair map that represents the will of the people. That’s why I’m proud to chair this commission. Our democracy depends on all of us standing up in this moment.” Will Maryland’s First District finally be competitive? Can we at long last replace “AWOL Andy” Harris? Stay tuned…. Jan Plotczyk spent 25 years as a survey and education statistician with the federal government, at the Census Bureau and the National Center for Education Statistics. She retired to Rock Hall.
By CSES Staff November 4, 2025
In strong numbers, local residents turned out last month for a community information session on offshore wind hosted by the Alliance for Offshore Wind at the Ocean Pines library. The forum heard from industry experts, environmental advocates, and labor leaders to discuss how offshore wind projects can support jobs, clean energy, and coastal resilience along Maryland’s Eastern Shore. Featured were Sam Saluto of Oceantic, Jim Strong of the United Steelworkers, Ron Larsen of Sea Ink Solutions, and Jim Brown of the Audubon Society, all of whom emphasized the long-term environmental and economic benefits of wind development off Maryland’s coast. Speakers outlined how the project, once completed, is expected to create hundreds of high-paying jobs, generate clean power for tens of thousands of homes, and reduce reliance on fossil fuels that cause pollution and coastal erosion. “The potential here is extraordinary,” said Saluto, highlighting Oceantic’s ongoing work to ensure safety and sustainability standards remain at the highest level. “We’re not just talking about wind turbines. We’re talking about revitalizing local economies and protecting the Shore’s way of life.” Union representative Jim Strong echoed that sentiment, noting that Maryland’s labor community sees offshore wind as a chance to rebuild domestic manufacturing capacity while giving workers access to strong wages and long-term stability. Environmental voices, including Jim Brown of the Audubon Society, focused on how properly sited wind projects can reduce carbon emissions while coexisting with marine wildlife and migratory bird patterns. While most of the evening centered on data and community questions, the event briefly turned tense when Ocean City Mayor Rick Meehan, who is leading a lawsuit challenging Maryland’s offshore wind plans, attempted to question the panel. The mayor appeared to lose his train of thought mid-sentence and later cast doubt on the reality of climate change, drawing visible concern from several attendees. Meehan, a New Yorker who moved to Ocean City in 1971 and has held public office since 1985, has become one of the region’s most vocal opponents of offshore wind. His critics argue the lawsuit represents an effort to stall progress rather than engage with the facts presented by energy, labor, and environmental experts. Despite the brief exchange, the overall tone of the evening was forward-looking. Residents lingered after the formal discussion to review informational materials, speak with industry representatives, and learn about opportunities for community involvement. For many, the message was clear: Maryland’s transition to clean energy is not only feasible, it’s already underway, and the Eastern Shore stands to benefit.
By CSES Staff October 24, 2025
 Sparking alarm among housing advocates, social workers, and residents, Salisbury Mayor Randy Taylor has announced plans to gut Salisbury’s nationally recognized Housing First program, signaling a break from years of bipartisan progress on homelessness. Created in 2017 under then-Mayor Jacob Day, the initiative was designed around a simple but powerful principle: that stable, permanent housing must come first before residents can address problems with employment, health, or recovery. The program was designed to provide supportive housing for Salisbury’s most vulnerable residents — a model backed by decades of national data showing it reduces homelessness, saves taxpayer dollars, and lowers strain on emergency services. But under Taylor’s leadership, that vision appears to be ending. In a letter to residents, the City of Salisbury announced that the Housing First program will be shut down in 2027, in effect dismantling one of the city’s long-term programs to prevent homelessness. Taylor says he plans to “rebrand” the program as a temporary “gateway to supportive housing,” shifting focus away from permanent stability and toward short-term turnover. “We’re trying to help more people with the same amount of dollars,” Taylor said. Critics call that reasoning deeply flawed, and dangerous. Former Mayor Jacob Day, who helped launch the initiative, says that Housing First was always intended to be permanent supportive housing, not a revolving door. National studies show that when cities replace permanent housing programs with short-term placements, people end up right back on the streets, and that costs taxpayers more in emergency medical care, policing, and crisis intervention. Local advocates warn that Taylor’s move will undo years of progress. “This isn’t just a policy shift, it’s a step backward,” one social service worker said. “Housing First works because it’s humane and cost-effective. This administration is turning it into a revolving door to nowhere.” Even some community partners who agree the program needs better oversight say that Taylor is missing the point. Anthony Dickerson, Executive Director of Salisbury’s Christian Shelter, said the city should be reforming and strengthening its approach, not abandoning its foundation. Under Taylor’s proposal, participants could be limited to one or two years in housing before being pushed out, whether or not they’re ready. Advocates fear this change could push vulnerable residents back into instability, undoing the progress the city was once praised for. While Taylor touts his plan as a way to “help more people,” critics say it reflects a troubling pattern in his administration: cutting programs that work. For years, Salisbury’s Housing First initiative has symbolized compassion and evidence-based leadership and has stood as a rare example of a small city tackling homelessness with dignity and results. Now, as Taylor moves to end it, residents and advocates are asking a simple question: Why would a mayor tear down one of Salisbury’s most successful programs for helping people rebuild their lives?
By John Christie October 24, 2025
On the first Monday of October, the Supreme Court began a new term, Term 2025 as it is officially called. The day also marked John Roberts’ 20 years as Chief Justice of what history will clearly record as the Roberts Court. Twenty years is a long time but at this point, Roberts is only the fourth longest serving Chief Justice in our history. John Marshall, the fourth and longest, served for 34 years, 152 days (1801–35). Roger Brooke Taney, served for 28 years, 198 days (1836–64). Melville Fuller, served 21 years, 269 days (1888 to 1910). John Roberts was originally nominated by George W. Bush to fill the seat held by the retiring Sandra Day O’Connor but, upon the unexpected death of William Rehnquist, Bush instead nominated Roberts to serve as Chief Justice. His nomination was greeted by enthusiasm and high hopes in many quarters. He was young, articulate, personable, and highly qualified, having had an impressive academic record, experience in the Reagan administration and the private bar, and service on the federal D.C. Court of Appeals for two years. His “balls and strikes” comment at his confirmation hearing struck many as suggesting judicial independence. He sounded as well very much like an institutionalist, having said at an early interview that “it would be good to have a commitment on the part of the Court to act as a Court.” Whatever else might be said 20 years later about the tenure of John Roberts as Chief Judge, the Supreme Court is no doubt much less popular and much more divisive today than it was on September 29, 2005, when he was sworn in as the 17th Chief Justice by Justice John Paul Stevens, then the Court’s most senior associate justice, and witnessed by his sponsor, George W. Bush. Gallup’s polling data shows popular support for the Court now at the lowest levels since they started measuring it. In July 2025, a Gallup poll found that, for the first time in the past quarter-century, fewer than 40% of Americans approved of the Supreme Court’s performance. According to Gallup, one major reason that approval of the Supreme Court has been lower is that its ratings have become increasingly split along party lines — the current 65-point gap in Republican (79%) and Democratic (14%) approval of the court is the largest ever. The legal scholar Rogers Smith wrote in The Annals of the American Academy of Political and Social Science in June, “Roberts’s tenure as Chief Justice has led to the opposite of what he has said he seeks to achieve. The American public now respects the Court less than ever and sees it as more political than ever.” These results signify more than simply a popularity poll because a Court without broad public support is a Court that will not have the same public respect upon which their most important decisions have historically depended. And, whatever the reasons for this development, it has happened on John Roberts’s watch. There is no better example of the current divisiveness on the Court than the remarkable string of “emergency” rulings on the Court’s so-called shadow docket since January 20. The extent of ideological and partisan differences has been sharp and extreme. The conservative majority’s votes have frequently been unexplained, leaving lower court judges to have to puzzle the decision’s meaning and leaving the public to suspect partisan influences. And the results of these shadow docket rulings have had enormous, sometimes catastrophic, consequences: Removing noncitizens to countries to which they had no ties or faced inhumane conditions Disqualifying transgender service members Firing probationary federal workers and independent agency heads Ending entire governmental departments and agencies without congressional approval Allowing the impounding of foreign aid funds appropriated by Congress Releasing reams of personal data to the Department of Government Efficiency Allowing immigration raids in California based on racial and ethnic profiling John Roberts has written many Supreme Court opinions in his 20 years as Chief Justice. At the 20-year mark, the most important, to the nation and to his legacy, will likely be his opinion in the Trump immunity case, which changed the balance of power among the branches of government, tipping heavily in the direction of presidential power. Trump v. United States (2024). In her dissent from his majority opinion in that case, Justice Sonia Sotomayor, joined by Justices Elena Kagan and Ketanji Brown Jackson, warned about the consequences of such a broad expansion of presidential power. “The Court effectively creates a law-free zone around the president,” upsetting the status quo that had existed since the nation’s founding and giving blanket permission for wrongdoing. “Let the president violate the law, let him exploit the trappings of his office for personal gain, let him use his official power for evil ends. In every use of official power, the president is now a king above the law.” Roberts claimed in his majority opinion that the “tone of chilling doom” in Sotomayor’s dissent was “wholly disproportionate” to what the ruling meant. However, Sotomayor’s words have proved prescient: the breadth of power that Trump and his administration have asserted in the months since he was sworn in for his second term has made plain how boundlessly they now interpret the reach of the presidency in the wake of the Roberts opinion. Despite the early “balls and strikes” comment, the assessment of John Roberts’ long term judicial record suggests something different as seen by several distinguished legal commentators from significantly different perspectives. As summarized by Lincoln Caplan, a senior research scholar at Yale Law School, in a new retrospective article on Robert’s 20-year tenure, “From his arrival on the Court until now, his leadership, votes, and opinions have mainly helped move the law and the nation far to the right. An analysis prepared by the political scientists Lee Epstein, Andrew Martin, and Kevin Quinn found that in major cases, the Roberts Court’s record is the most conservative of any Supreme Court in roughly a century.” “What Trump Means for John Roberts's Legacy,” Harvard Magazine , October 8, 2025. Steve Vladeck, Georgetown Law Center professor and a regularly incisive Court commentator, characterized the 20-year Roberts’ Court as follows: “The ensuing 20 years has featured a Court deciding quite a lot more than necessary — inserting itself into hot-button social issues earlier than necessary (if it was necessary at all); moving an array of previously settled statutory and constitutional understandings sharply to the right; and, over the past decade especially, running roughshod over all kinds of procedural norms that previously served to moderate many of the justices’ more extreme impulses.” “The Roberts Court Turns Twenty,” One First , September 29, 2025. In another remarkable new article by a widely respected conservative originalist, similar concerns about the present Court have very recently been expressed. Caleb Nelson, who teaches at the University of Virginia and is a former law clerk to Justice Clarence Thomas, has written that the text of the Constitution and the historical evidence surrounding it in fact grant Congress broad authority to shape the executive branch, including by putting limits on the president’s power to fire people. “Must Administrative Officers Serve at the President’s Pleasure?” Democracy Project, NYU LAW , September 29, 2025. When the First Congress confronted similar ambiguities in the meaning of the Constitution, asserts Nelson, “more than one member warned against interpreting the Constitution in the expectation that all presidents would have the sterling character of George Washington.” Nelson continues, “The current Supreme Court may likewise see itself as interpreting the Constitution for the ages, and perhaps some of the Justices take comfort in the idea that future presidents will not all have the character of Donald Trump. But the future is not guaranteed; a president bent on vengeful, destructive, and lawless behavior can do lasting damage to our norms and institutions.” John Christie was for many years a senior partner in a large Washington, D.C. law firm. He specialized in anti-trust litigation and developed a keen interest in the U.S. Supreme Court about which he lectures and writes. 
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