Federal investigators say they have "significant safety concerns" about a Ford SUV recall repair that doesn't fix gasoline leaks that can cause engine fires. The U.S. National Highway Traffic Safety Administration is demanding volumes of information from the automaker as it investigates the fix in a March 8 recall of nearly 43,000 Bronco Sport and Escape SUVs with 1.5-liter engines. Ford says the SUVs have fuel injectors that will crack, allowing gas or vapor to leak near hot engine parts that can cause fires. But the agency says the recall fix does not proactively replace fuel injectors before they fail.

The United Arab Emirates is struggling to recover from the heaviest recorded rainfall ever to hit the desert nation, as its main airport worked to restore normal operations even as floodwater still covered portions of major highways and roads. Dubai International Airport, the world's busiest for international travel, allowed global carriers on Thursday morning to again fly into Terminal 1 at the airfield. The UAE, a hereditarily ruled, autocratic nation on the Arabian Peninsula, typically sees little rainfall in its arid desert climate. However, a massive storm forecasters had been warning about for days blew through the country's seven sheikhdoms on Tuesday, causing massive flooding.

The Biden administration has announced new automobile emissions standards that officials call the most ambitious plan ever to cut planet-warming emissions from passenger vehicles. The new rules relax initial tailpipe limits proposed last year but eventually reach nearly the same strict standards set out by the Environmental Protection Agency. The rules announced Wednesday come as sales of electric vehicles, which are needed to meet the standards, have begun to slow. The auto industry cited lower sales growth in objecting to the earlier EPA proposal. Under its final rule, the industry could meet the limits if 56% of new vehicle sales are electric by 2032, along with 13% plug-in hybrids or other partially electric cars and more efficient gasoline-powered cars.

In the Arizona desert, a Danish company is building a massive solar farm that includes batteries that charge when the sun is shining and supply energy back to the electric grid when it's not. Ørsted's Eleven Mile Solar Center has more than 850,000 solar panels and opens this summer. The United States is rapidly adding batteries, most of them the lithium-ion type, to store energy at large scale. Increasingly, these are getting combined with solar and wind projects. The agencies that run electric grids, utilities and renewable developers say this is essential for a clean energy future because batteries allow renewables to replace fossil fuels, while keeping the lights on and delivering power exactly when it's needed.