#populations

#populations

On those same maps, pollution also spiked inside people's homes.Some households had installed sensors indoors to track air quality levels.Researchers at the University of California Berkeley studied the data from 1,400 sensors in San Francisco and Los Angeles and found that even indoors, air pollution tripled during the fires.

Skies have been stained a sickly brown in the U.S. Northeast this week.Smoke from numerous wildfires in Canada has circulated hundreds of miles down the East Coast, as far south as South Carolina.The dense plumes triggered unhealthy air quality alerts in 18 states as of 6 P.M. Eastern Daylight Time on Wednesday.

There was also direct human predation on an industrial scale, with the harvest of seabird eggs for food, their guano as fertilizer and the birds themselves to render for oil, along with seals, sea lions and whales, or as the unwanted bycatch of commercial fishing boats.On the Farallon Islands near San Francisco, home to the largest single seabird nesting colony in the United States, the murre population dropped from 400,000 to 60,000 in just a few decades during the gold rush, as people harvested up to half a million eggs per year.

CLIMATEWIRE | New research has revealed an unexpected consequence of climate change.Some crabs are losing their sense of smell.As more carbon dioxide seeps into the ocean and the water becomes more acidic, it's degrading one of the most important senses they use to find food.That could cause their populations to decline.

The man all but certain to be the next mayor of Rascafria, a small town in the green and mist-hugged mountains an hour north of Madrid, gives few clues about his political leanings as he lists his priorities for the coming months and years.As well as helping the hospitality and livestock sectors on which the local economy depends, Oscar Robles wants to improve the leisure and culture provision for Rascafria's ill-served young people and to reopen a social club for its older residents that has been shuttered since before the Covid pandemic.

Invertebrates living in the cool meltwater rivers of the European Alps could lose most of their habitat and disappear, as the mountain range's glaciers melt at an unprecedented rate due to climate change, according to a study.Although they are often overlooked, these animals are crucial for alpine ecosystems.

Servicers know all about the regulatory complexity - whether the rules are coming from the state or federal level or the Consumer Financial Protection Bureau (CFPB) - that often leaves them in a constant state of audit and exam.With so much at risk, servicers must find ways to be preventative and proactive to ensure compliance and longevity.

Conservationists warn that a big cat population in Europe is destined to collapse unless immediate efforts are made to protect the animals.Researchers estimate there are 120 to 150 adult lynxes in France.Tests on the animals show that the cats' genetic diversity is so low they will become locally extinct within the next 30 years unless there is urgent intervention.

In the wake of the pandemic and its devastating impacts on public transportation both on ridership and revenue, transit systems across the country are facing a funding crisis that could have decades-long impacts on workers and the riders who are dependent on public transportation.While ridership has steadily improved since 2020, budget shortfalls coupled with other factors, including inflation and rising transit operating costs, threaten to exacerbate what is referred to in the industry as the "transit death spiral": transit agencies cut service or increase fares and in turn fewer people use public transport, leading to even greater declines in revenue.

Scientists have revealed a surprisingly complex origin of our species, rejecting the long-held argument that modern humans arose from one place in Africa during one period in time.By analyzing the genomes of 290 living people, researchers concluded that modern humans descended from at least two populations that coexisted in Africa for a million years before merging in several independent events across the continent.

By Jennifer Rigby
LONDON (Reuters) - Some of the world's leading makers of flu vaccines say they could make hundreds of millions of bird flu shots for humans within months if a new strain of avian influenza ever jumps across the species divide.One current outbreak of avian flu known as H5N1 clade 2.3.4.4b has killed record numbers of birds and infected mammals.

As glaciers melt and pour massive amounts of water into nearby lakes, 15 million people across the globe live under the threat of a sudden and deadly outburst flood, a new study finds.More than half of those living in the shadow of the disaster called glacial lake outburst floods are in just four countries: India, Pakistan, Peru and China, according to a study in Tuesday's Nature Communications.