TheConversation

On Feb. 3, 2023, a train carrying chemicals jumped the tracks in East Palestine, Ohio, rupturing railcars filled with hazardous materials and fueling chemical fires at the foothills of the Appalachian Mountains. The disaster drew global attention as the governors of Ohio and Pennsylvania urged evacuations for a mile around the site. Flames and smoke billowed from burning chemicals, and an acrid odor radiated from the derailment area as chemicals entered the air and spilled into a nearby creek. Three days later, at the urging of the rail company, Norfolk Southern, about 1 million pounds of vinyl chloride, a chemical that can be toxic to humans at high doses, was released from the damaged train cars and set aflame. Federal investigators later concluded that the open burn and the black mushroom cloud it produced were unnecessary, but it was too late. Railcar chemicals spread into Ohio and Pennsylvania. The scene after a train carrying haz...

Constellation, an energy company that provides electricity and natural gas to customers in 16 states and Washington, announced on Sept. 20, 2024, that it plans to restore and restart Unit 1 at Three Mile Island, a nuclear plant near Middletown, Pennsylvania, that was shut down in 2019. Microsoft has signed a 20-year agreement to purchase electricity generated by the plant to offset power demand from its data centers in the mid-Atlantic region. Three Mile Island was the site in 1979 of a partial meltdown at the plant’s Unit 2 reactor. The Nuclear Regulatory Commission calls this event “the most serious accident in U.S. commercial nuclear power plant operating history,” although only small amounts of radiation were released, and no health effects on plant workers or the public were detected. Unit 1 was not affected by the accident. University of Michigan nuclear engineering professor Todd Allen explains what restarting Unit 1 will involve, and why some other shu...

Hurricane Helene cut power to more than 4 million homes and businesses as it moved across the Southeast after hitting Florida’s Big Bend region as a powerful Category 4 storm on Sept. 26, 2024. As Helene’s rains moved into the mountains, causing devastating flooding, officials warned that fixing downed utility lines and restoring power would take days to weeks. Electricity is essential to just about everyone – rich and poor, old and young. Yet, when severe storms strike, socioeconomically disadvantaged communities often wait longest to recover. That isn’t just a perception. We analyzed data from over 15 million consumers in 588 U.S. counties who lost power when hurricanes made landfall between January 2017 and October 2020. The results show that poorer communities did indeed wait longer for the lights to go back on. A 10 percentile drop in socioeconomic status in the Centers for Disease Control and Prevention’s social vulnerability index was assoc...

Millions of Americans have been watching with growing alarm as their homeowners insurance premiums rise and their coverage shrinks. Nationwide, premiums rose 34% between 2017 and 2023, and they continued to rise in 2024 across much of the country. To add insult to injury, those rates go even higher if you make a claim – as much as 25% if you claim a total loss of your home. Why is this happening? There are a few reasons, but a common thread: Climate change is fueling more severe weather, and insurers are responding to rising damage claims. The losses are exacerbated by more frequent extreme weather disasters striking densely populated areas, rising construction costs and homeowners experiencing damage that was once more rare. Hurricane Ian, supercharged by warm water in the Gulf of Mexico, hit Florida as a Category 4 hurricane in October 2022 and caused an estimated $112.9 billion in damage. Ricardo Arduengo/AFP via...

Humans generate a lot of plastic waste – more than 400 million metric tons a year. To bring this fact a bit closer to home, the U.S. produced an average of 0.75 pounds (0.34 kilograms) of plastic waste per person each day in 2010, which is equivalent in weight to an unopened can of soda. Plastic products have been propelling our quality of life forward for over a century, from keeping food fresh longer to enhancing medical hygiene and making transportation more energy-efficient. In the meantime, plastic waste has also accumulated. Today it is an unsolved and growing problem of gargantuan proportions. Worldwide, only 9% of plastic waste is recycled – largely through mechanical processing, creating products like drainage pipes – and 19% is incinerated. The rest is either buried in landfills or has escaped into the environment, where it damages ecosystems and harms human health. To address existing and future plastic waste, new approaches beyond mechanical rec...