The U.N. weather agency says the world — and especially urban areas — experienced a brief, sharp drop in emissions of air pollutants last year amid lockdown measures and related travel restrictions put in place over the coronavirus pandemic.

The World Meteorological Organization, releasing its first ever Air Quality and Climate Bulletin on Friday, cautioned that the reductions in pollution were patchy — and many parts of the world showed levels that outpaced air quality guidelines. Some types of pollutants continued to emerge at regular or even higher levels.

Flash flooding caused by the remnants of Hurricane Ida has killed at least 44 people in four northeastern U.S. states, including several who perished in basements during the "historic" weather event officials blamed on climate change.

Spain's northeast town of Alcanar on Thursday assessed the damage to homes and businesses caused by flooding produced by intense rain that fell over large areas of the country.

Residents said that they were fortunate that no lives were lost when over 250 liters per square meter (45 gallons per square yard) were dumped on the town between 12 a.m. and 6 p.m. on Wednesday.

China needs to expand its efforts to reduce carbon emissions to help hold back the rise in global temperatures, U.S. envoy John Kerry said Thursday.

The State Department said Kerry told Chinese Vice Premier Han Zheng in a virtual meeting that there is "no way" for the world to solve the climate crisis without China's "full engagement and commitment."

Relentless rain from the remnants of Hurricane Ida sent the New York City area into a state of emergency early Thursday, as the storm carried into New England with threats of more tornadoes.

New York's FDR Drive, a major artery on the east side of Manhattan, and the Bronx River Parkway were under water by late Wednesday evening. Subway stations and tracks became so flooded that the Metropolitan Transportation Authority suspended all service. Videos posted online showed subway riders standing on seats in cars filled with water.

An oil slick spreading from a Syrian power plant drew closer Wednesday to the breakaway north of the Mediterranean island of Cyprus despite urgent efforts to stop the spread.

Environmental and transport officials in the self-declared Turkish Republic of Northern Cyprus (TRNC) -- recognized only by Ankara -- said the oil had approached to within 15 nautical miles (28 kilometers) of the divided island's northeastern tip.

A Bengal tiger cub is being cared for by humans at Nicaragua's National Zoo after its mother was unable to produce the milk necessary to feed the latest little addition to the endangered species, the zoo's director Eduardo Sacasa said Tuesday.

The tiger, which was born on Saturday, is the fourth of its kind to be born at the National Zoo in Masaya, some 20 miles (30 kilometers) south of the capital Managua. 

Flames raced across treetops and through drought-stricken vegetation as firefighters scrambled Wednesday to keep a growing California wildfire from reaching a resort city at the southern tip of Lake Tahoe after evacuation orders were expanded to neighboring Nevada.

Thick smoke from the Caldor Fire enveloped the city of South Lake Tahoe, which was all but deserted during a summer week usually bustling with tourists.

Weather disasters are striking the world four to five times more often and causing seven times more damage than in the 1970s, the United Nations weather agency reports.

But these disasters are killing far fewer people. In the 1970s and 1980s, they killed an average of about 170 people a day worldwide. In the 2010s, that dropped to about 40 per day, the World Meteorological Organization said in a report Wednesday that looks at more than 11,000 weather disasters in the past half-century.

- Op-ed by U.N. Resident & Humanitarian Coordinator for Lebanon Najat Rochdi:

"Over the last few years, Lebanon has been through immense challenges that have left no segment of its society unscathed. The country has been challenged by economic crisis, the COVID-19 pandemic, the Port of Beirut explosion, environmental disasters and prolonged political deadlock. These challenges have crippled Lebanon, obstructed its development and decimated its capacity to cope. To top it all off, in climate change Lebanon faces another challenge: a threat multiplier that will intensify current predicaments, and one that requires resolute action by the government and the people, both in the short-term and well into the future.