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“David is a great transplant surgeon. Five of his patients need new parts — one needs a heart, the others need, respectively, liver, stomach, spleen, and spinal cord — but all are of the same, relatively rare, blood-type. By chance, David learns of a healthy specimen with that very blood-type. David can take the healthy […]

After a major setback on a historic package of climate legislation, President Joe Biden and Democrats in Congress are scrambling to find other ways to slash US emissions. As they race to create a Plan B for an escalating climate crisis, they stand to learn a lot from the Obama era — a history that’s […]

Four executives from Big Oil — “the richest, most powerful industry in human history,” according to environmentalist Bill McKibben — testified before Congress on Thursday at a hearing meant to reveal how the oil business has undermined government action on climate change. The House Committee on Oversight and Reform questioned the CEOs of ExxonMobil, BP, […]

Corporations and countries around the world are promising to eliminate their contributions to climate change. But many of their targets for cutting greenhouse gas emissions are prefaced by a slippery phrase: “net-zero.” More than 130 countries have set or are considering net-zero emissions goals, and many are stepping up as they prepare for next week’s […]

Almost every country in the world signed the 2015 Paris climate agreement, a monumental accord that aimed to limit global warming. But it was forged on a contradiction: Every signatory agreed that everyone must do something to address the urgent threat of climate change, but no one at the time pledged to do enough. In […]

As the White House revealed Thursday, President Joe Biden has stripped a lot from his Build Back Better framework to placate moderate Democrats. Free community college is out, as is Medicare coverage of dental and vision services, among several other priorities. But there is one surprising area that’s so far survived the congressional gauntlet as […]

More than 28 million children across the US are now eligible to receive Covid-19 vaccinations, a step that could relieve anxiety for families, bring more kids back to schools, and slow the spread of the disease. On Tuesday, the Centers for Disease Control and Prevention endorsed the Pfizer/BioNTech vaccine for kids between the ages of […]

Every year, thousands of whales strand — meaning that they wind up trapped on beaches or in shallow waters — and it’s really hard to figure out why. It’s not for lack of trying. Teams of forensic researchers investigate stranded whales, studying organs, analyzing body parts with CT scanners, digging through stomach contents, and checking […]

When SpaceX launches its first all-civilian crew into space later this fall and takes a multi-day trip circling the Earth, humanity can follow along online thanks to an exclusive documentary deal Netflix sealed with Elon Musk’s private space company. The first two installments of the five-episode miniseries, Countdown: Inspiration4 Mission to Space, will debut on […]

In 2017, an evolutionary biologist named R. Alexander Pyron ignited controversy with a Washington Post commentary titled “We don’t need to save endangered species. Extinction is part of evolution.” He wrote: “Conserving a species we have helped to kill off, but on which we are not directly dependent, serves to discharge our own guilt, but […]