Author: Reporter

The powerful algorithms used by Facebook and Instagram to deliver content to users have increasingly been blamed for amplifying misinformation and political polarization. But a series of groundbreaking studies published in July suggest addressing these challenges is not as simple as tweaking the platforms’ software. The four research papers, published in Science and Nature, also reveal the extent of political echo chambers on Facebook, where conservatives and liberals rely on divergent sources of information, interact with opposing groups and consume distinctly different amounts of misinformation. Algorithms are the automated systems that social media platforms use to suggest content for...

Drinking water from nearly half of U.S. faucets likely contains “forever chemicals” that may cause cancer and other health problems, according to a government study released in July. The synthetic compounds known collectively as PFAS are contaminating drinking water to varying extents in large cities and small towns — and in private wells and public systems, the U.S. Geological Survey said. Researchers described the study as the first nationwide effort to test for PFAS in tap water from private sources in addition to regulated ones. It builds on previous scientific findings that the chemicals are widespread, showing up in...

The U.S. government’s most ambitious plan ever to slash planet-warming greenhouse gas emissions from passenger vehicles faces skepticism both about how realistic it is and whether it goes far enough. The Environmental Protection Agency in April announced new strict emissions limits that the agency says are vital to slowing climate change as people around the globe endure record-high temperatures, raging wildfires and intense storms. The EPA says the industry could meet the limits if 67% of new-vehicle sales are electric by 2032, a pace the auto industry calls unrealistic. However, the new rule would not require automakers to boost...

The last part of the speech took less time to deliver than it takes to boil an egg, but “I Have A Dream” is one of American history’s most famous orations and most inspiring. On August 28, 1963, from the Lincoln Memorial in Washington, Martin Luther King Jr. began by speaking of poverty, segregation and discrimination and how the United States had reneged on its promise of equality for Black Americans. If anyone remembers that dystopian beginning, they don’t talk about it. What is etched into people’s memory is the pastoral flourish that marked the last five minutes and...

The March on Washington of 1963 is remembered most for the Rev. Martin Luther King Jr.’s “I Have a Dream” speech, and thus as a crowning moment for the long-term civil rights activism of what is sometimes referred to as the “Black Church.” At the march, King indeed represented numerous other Black clergy who were his colleagues in the Southern Christian Leadership Conference. But the march was the product of sustained activism by a broader coalition. Black and white labor leaders, as well as white clergy, played pivotal roles over many months ahead of the event. Moreover, the Black...

Sixty years ago, Andrew Young and his staff had just emerged from an exhausting campaign against racial segregation in Birmingham, Alabama. But they didn’t feel no ways tired, as the Black spiritual says. The foot soldiers were on a “freedom high,” Young recalls. “They wanted to keep on marching, they wanted to march from Birmingham to Washington,” he said. And march they did, in the nation’s capital. Just four months later, they massed for what is still considered one of the greatest and most consequential racial justice demonstrations in U.S. history. The nonviolent protest, which attracted as many as...