PORTLAND, Oregon — As native trees in the Pacific Northwest die off due to climate changes, the U.S. Forest Service, Portland, Oregon and citizen groups around Puget Sound are turning to a deceptively simple climate adaptation strategy called “assisted migration.”

PORTLAND, Maine — Maine’s Democratic secretary of state on Thursday removed former President Donald Trump from the state’s presidential primary ballot under the Constitution’s insurrection clause, becoming the first election official to take action unilaterally as the U.S. Supreme Court is poised to decide whether Trump remains eligible to return to the White House.

ATLANTA — A federal judge on Thursday accepted new Georgia congressional and legislative voting districts that protect Republican partisan advantages, saying the creation of new majority-Black voting districts solved the illegal minority vote dilution that led him to order maps to be redrawn.

WASHINGTON — The U.S. military on Thursday opened a new chapter in how it investigates and prosecutes cases of sexual assault and other major crimes, putting independent lawyers in charge of those decisions and sidelining commanders after years of pressure from Congress.

Gypsy Rose Blanchard, the Missouri woman who persuaded an online boyfriend to kill her mother after she had forced her to pretend for years that she was suffering from leukemia, muscular dystrophy and other serious illnesses, was released Thursday from prison on parole.

WASHINGTON — New obesity drugs are showing promising results in helping some people shed pounds but the injections will remain out of reach for millions of older Americans because Medicare is forbidden to cover such medications.

DEIR AL-BALAH, Gaza Strip — Israeli forces bombarded cities, towns and refugee camps across Gaza on Thursday, killing dozens of people in a widening air and ground offensive against Hamas that has forced thousands more to flee from homes and shelters in recent days.

Social media companies collectively made over $11 billion in U.S. advertising revenue from minors last year, according to a study from the Harvard T.H. Chan School of Public Health published on Wednesday.

NASHVILLE, Tenn. — On Dec. 28, 1973, President Richard Nixon signed the Endangered Species Act. “Nothing,” he said, “is more priceless and more worthy of preservation than the rich array of animal life with which our country has been blessed.” The powerful new law charged the federal government with saving every endangered plant and animal in America and enjoyed nearly unanimous bipartisan support.