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South America is experience record - breaking fervour , which have led to " pitch-black pelting , " fleeceable rivers and hazardousair pollutionalmost50 times higherthan the floor recommended by the World Health Organization , according to the air quality monitoring company IQair .

Between Jan. 1 and Sept. 16 , the continent recorded 364,485forest fires , outperform the 2007 record of 345,322 fervour , according to datum from theBrazilian Space Research InstituteandReuters .

Aerial view shows a house destroyed by a fire in the surroundings of the SP-330 highway in Ribeirao Preto, Sao Paulo state, Brazil on August 25, 2024.

A house destroyed by fires in Sao Paulo state, Brazil, on Aug. 25, 2024.

Thehistoric drought in the Amazonhas worsened the spreading of the flack . Many of the blast have been assign to human activity , but the drought has created friendly atmospheric condition for their speedy spread . As a solution , 60 % of Brazil ’s territory is presently dissemble by smoke .

Including neighboring countries and the Atlantic Ocean , the arena affect by the toxic cloud now cross 4 million solid miles ( 10 million straight kilometers ) — an area declamatory than the total United States .

" Theair lineament in Brazilhas never been worse,“Alessandra Fidelis , a research worker at the Plant Ecology Laboratory of the State University of São Paulo , told Live Science .

An aerial view of algae pollution at the Pinheiros River in Sao Paulo, Brazil, taken on September 9, 2024.

Algae pollution in the Pinheiros River in Sao Paulo caused the water to turn green in September.

Natalia Gil , an atmospheric skill expert and appendage of the Air Quality and Emissions Department at the Technological Laboratory of Uruguay , told Live Science there has been a progressive declension in air quality in urban center across southerly Brazil , northerly Argentina , Bolivia , Paraguay and northeastern Uruguay .

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In recent weeks , Gil observed " a significant increase " in black carbon paper , particulate thing and gases such as ozone , nitrogen oxide and carbon monoxide in city as far - flung as Buenos Aires , São Paulo , Londrina , Rio de Janeiro , Cochabamba and La Paz . In Uruguay ’s majuscule , Montevideo , resident physician have poor visibility for several days due to the dumb weed cloud and black pelting — hurriedness that turns dark due to the miscellany of ash tree and crock — enter in multiple section of the country . The same site occurred across11 Argentine state , including the Metropolitan Area of Buenos Aires .

Air pollution seen over the skyline of a city.

Air pollution over Sao Paulo on Sept. 11.

In São Paulo , meanwhile , the Pinheiros River turned emerald honey oil due to an alga bloom trip by the severe drought .

Paulo Saldiva , a pathologist and professor at the University of São Paulo School of Medicine , compare the smoke produced by burn biomass to cigaret smoking , noting that both moderate toxic substances that enter the physical structure through the eye , respiratory parcel and lungs . In a metropolis like São Paulo , for example , the tier of vehicular and industrial pollution is equivalent to fume four to five fag daily . However , for those let out to smoke from forest ardor over long period , the shock is akin to " light one cigarette after another , " Saldiva say .

Environmental changes in recent decades , along with shifts in commonwealth habit , have significantly altered fire regimes . While Brazil has always get dry season , the mediocre number of consecutive rainless days has increased from 80 to 100 in the last decade , indicating a worsening of mood - link wallop , Fidelis noted . " The forest is more susceptible to burning , even with the reduction in deforestation rates . It has become more flammable , " Fidelis said .

a firefighter wearing gear stands on a hill looking out at a large wildfire

In addition to change in downfall , arise temperatures , soil moisture and carbon copy dioxide levels can regulate the timing , extent , continuance , frequency and intensity of fires , Luis López - Mársico , a researcher at the Institute of Ecology and Environmental Sciences at the University of the Republic of Uruguay , assure Live Science .

— Large patch of the Atlantic Ocean near the equator has been cooling at book speeds — and scientists ca n’t figure out why

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A satellite photo of an island with a giant river of orange lava

— Amazon wildfires could burn at unprecedented graduated table as El Niño and drought make rainforest ' more flammable '

In much of Brazil , these changes manifest as high temperatures , reduced rain , and , most notably , an addition in extreme drought result , which prolong the so - called " ardour time of year , "

All of this constitutes a " new normal , " according to Fidelis . " We need to start realise that we are manage with a new factor we once thought of as a future scenario , but which is now our realness : climate change , " she said .

A photograph of the flooding in Hopkinsville, Kentucky, on April 4.

a destoryed city with birds flying and smoke rising

A GOES-East satellite image of the continental U.S. taken during the winter storm on Feb. 19.

a person points to an earthquake seismograph

A photo of dead trees silhouetted against the sunset

Chunks of melting ice in the Arctic ocean

an illustration of a base on the moon

An aerial photo of mountains rising out of Antarctica snowy and icy landscape, as seen from NASA�s Operation IceBridge research aircraft.

A tree is silhouetted against the full completed Annular Solar Eclipse on October 14, 2023 in Capitol Reef National Park, Utah.

Screen-capture of a home security camera facing a front porch during an earthquake.

Circular alignment of stones in the center of an image full of stones

Three-dimensional rendering of an HIV virus