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SUNDAY, OCTOBER 01, 2023
Australia fires: Smoke to make 'full circuit' around globe, Nasa says

Environment

TBS Report
14 January, 2020, 04:25 pm
Last modified: 14 January, 2020, 04:32 pm

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Australia fires: Smoke to make 'full circuit' around globe, Nasa says

Nasa said plumes from blazes around New Year's Day had crossed South America, turning skies there hazy, and moved "halfway around Earth" by 8 January

TBS Report
14 January, 2020, 04:25 pm
Last modified: 14 January, 2020, 04:32 pm
Australia fires: Smoke to make 'full circuit' around globe, Nasa says

NASA is predicting the smoke from the Australian bushfires is so severe that it will soon complete a circuit of the Earth, returning to the country's skies from the west.

The smoke has billowed into the lower stratosphere, reaching 17.7 kilometres above sea level, US space agency NASA said this week, reports The Sydney Morning Herald.

Massive infernos have raged along the nation's east coast for months, pushing smoke across the Pacific.

A fleet of NASA satellites ?️ working together has been analyzing the aerosols and smoke from the massive fires burning in Australia.https://t.co/93geNvCBnU pic.twitter.com/ZedZ199lvJ— NASA Goddard (@NASAGoddard) January 9, 2020

Nasa said plumes from blazes around New Year's Day had crossed South America, turning skies there hazy, and moved "halfway around Earth" by 8 January, reports BBC.

"The smoke is expected to make at least one full circuit around the globe," the US space agency said.

Hundreds of bushfires have burnt across Australia, killing at least 28 people and destroying more than 2,000 homes.The unprecedented scale and intensity of the fires has been exacerbated by climate change, experts say.

How has the smoke taken a trip around the globe?

Nasa said recent blazes had been so big they had produced an "unusually large" number of pyrocumulonimbus events - or fire-generated thunderstorms.

These had sent smoke soaring into the stratosphere, with some recorded as high as 17.7km (11 miles).

"Once in the stratosphere, the smoke can travel thousands of miles from its source, affecting atmospheric conditions globally," Nasa said.

What has been the smoke's effect more detailed to ground?

Nasa noted the smoke had changed the colour of skies in South America, and dramatically affected New Zealand, where it was "causing severe air quality issues" and "visibly darkening mountaintop snow".

Large Australian cities including Sydney, Melbourne, Canberra, and Adelaide have also endured dangerous air quality levels due to smoke from nearby bushfires.

On Tuesday, Melbourne residents were enduring a second consecutive day of "hazardous" air quality, prompting concerns about public health.

More than 100 fires continue to burn in the nation's east, however cooler conditions in recent days and forecast rain have aided firefighting efforts.

World+Biz / Top News

Australia fires / smoke / NASA / circuit

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