World

"In fact," a senior administration official said, "we have now confirmed that in the last several days, Russia has increased its troop presence along the Ukrainian border by as many as 7,000 troops."

Putin says Russia has pulled out some of its 150,000 troops stationed near Ukraine's borders. "There's a difference between what Russia says and what it does," Secretary of State Antony Blinken says.

A full-scale invasion is not a certainty. But if it happens, experts say the effects of sanctions, energy market disruptions and cyberwarfare could reach everyday Americans.

Big rigs parked outside Parliament represent the movement's last stronghold after demonstrators abandoned their sole remaining truck blockade along the U.S. border.

Is Russia escalating — or de-escalating — its military positions along the borders of Ukraine? There are conflicting claims about what's happening now, and what could come next.

Chevron, ExxonMobil, BP and Shell used terms like "climate" and "low-carbon" more frequently in recent annual reports, but their actions on clean energy didn't match their words, researchers conclude.

While you're sky-gazing, look to the western horizon. Jupiter will be setting there as evening twilight ends. And that bright star? That's Regulus, part of the Leo constellation.

The Rye Riptides began as a science class project in New Hampshire. Some 462 days and 8,300 miles later, a sixth-grader retrieved it from an uninhabited Norwegian island, with its notes still intact.

"Coal supply will be increased and coal-fired power plants" will run at full capacity, the central government said this week.