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New Blood Donation Rules to Loosen Restrictions on Gay and Bisexual Men

CHRISTINA JEWETT

The F.D.A. proposed a more individualized policy based on questions about sexual behavior and risks.

The Sierra Club Tries to Move Past John Muir, George Floyd and #MeToo

DAVID GELLES

After a public reckoning and the departure of its executive director, the nation’s largest environmental organization has tapped Ben Jealous as its new leader.

Expert Panel Votes for Stricter Rules on Risky Virus Research

BENJAMIN MUELLER AND CARL ZIMMER

The White House will decide whether to adopt the panel’s recommendations on so-called gain of function experiments.

Biden Administration Bans Mining in Boundary Waters Wilderness

LISA FRIEDMAN

A 20-year moratorium on new mining activity for more than 225,000 acres of federal land in Minnesota could deal a fatal blow to a proposed Twin Metals copper-nickel mine.

Covid Vaccines Targeting Omicron Should Be Standard, Panel Says

BENJAMIN MUELLER AND SHARON LAFRANIERE

As advisers to the Food and Drug Administration endorsed ending one era of the Covid vaccination campaign, they also grappled with its future.

Newly Discovered Asteroid Passes Close to Earth

ANASTASIA MARKS

First detected just days ago, 2023 BU approached within 2,200 miles of our planet’s surface before moving on.

As the Colorado River Shrinks, Washington Prepares to Spread the Pain

CHRISTOPHER FLAVELLE AND MIRA ROJANASAKUL

The seven states that rely on the river for water are not expected to reach a deal on cuts. It appears the Biden administration will have to impose reductions.

Why Experts Are Urging Swifter Treatment for Children With Obesity

GINA KOLATA

Growing research has shown that intensive interventions are needed, scientists say. Here is why their advice is changing.