Health

We are in the midst of a mass extinction, many scientists have warned — this one driven not by a catastrophic natural event, but by humans. The unnatural loss of biodiversity is accelerating, and if it continues, the planet will lose vast ecosystems and the necessities they provide, including fresh …

Here’s what you need to know: As cases drop in the Northeast and some cities reopen, other places report stubbornly high numbers. Hong Kong police deny permission for Tiananmen Square vigil for the first time in 30 years. With the U.S. preoccupied by events at home, rivals are testing the …

Here’s what you need to know: U.S. communities are convulsed by two crises: a pandemic and police violence. Merkel declined Trump’s invitation to attend the G7 in person. Then Trump postponed the summit. Nations expand reopenings, and global cases pass 6 million. Catching up with an octogenarian couple once separated …

Here’s what you need to know: The White House sets conditions on testifying before Congress as the virus’s partisan divide widens. Inside an extraordinary G.O.P. event in South Carolina, where there were few masks and no social distancing. New York City moves toward reopening. Washington and Los Angeles are among …

Broccoli is such a versatile vegetable, and it’s fantastic in Summer salads. This salad is simple with a flavorful lemon tahini dressing. Broccoli and the other veggies in this salad are hearty, so the salad will hold up well as leftovers. The beauty of this recipe is getting all of …

Here’s what you need to know: Major U.S. cities edge closer to normalcy. But as global infections near 6 million, cautionary tales abound. After the W.H.O. loses U.S. support, the E.U. doubles down. The U.S. Supreme Court rejects a California church’s challenge to attendance limits. A partygoer in the Memorial …

TOKYO — As the world tries to get a handle on the coronavirus and emerge from paralyzing lockdowns, public health officials have repeated a mantra: “test, test, test.” But Japan went its own way, limiting tests to only the most severe cases as other countries raced to screen as many …

Research of the Week Diabetic patients taking metformin had lower coronavirus mortality than diabetic patients not taking it. “Increased cardiovascular disease in African-Americans with Covid-19.” Unsaturated fat intake and deficiencies in calcium and albumin linked to higher coronavirus mortality. “Financial relationships between the leaders of influential US professional medical associations …

The adult male scarlet tanager is a medium-size songbird with glaring crimson feathers and jet-black wings. It can be hard to spot, because the species tends to forage among the upper branches of tall trees. But it does come down to earth, and sometimes can be caught hanging out with …