Air pollution change dramatic across parts of Earth - Tucson News Now

Air pollution change dramatic across parts of Earth

Air pollution change dramatic across parts of Earth

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  • UPDATE: Wildlife officials put down bear that was roaming foothills neighborhood

    UPDATE: Wildlife officials put down bear that was roaming foothills neighborhood

    Wednesday, May 24 2017 8:46 PM EDT2017-05-25 00:46:44 GMT
    A bear looks into a home in the 5800 block of Bright Star Drive on Wednesday, May 24. (Source: Randy Ross)A bear looks into a home in the 5800 block of Bright Star Drive on Wednesday, May 24. (Source: Randy Ross)

    A black bear was shot and killed after it wandered into a Tucson neighborhood Wednesday morning.

    A black bear was shot and killed after it wandered into a Tucson neighborhood Wednesday morning.

  • UPDATE: Puppy recovering after getting stuck in Yazoo Co. tar

    UPDATE: Puppy recovering after getting stuck in Yazoo Co. tar

    Tuesday, May 23 2017 2:28 PM EDT2017-05-23 18:28:19 GMT
    Source: FLY Animal rescueSource: FLY Animal rescue

    The puppy was spotted under a leaking tar storage container on the public property. According to the animal rescue group that posted about the situation on Facebook, it cried out for help, unable to move as one side of his body and his face were stuck in the substance.  

    The puppy was spotted under a leaking tar storage container on the public property. According to the animal rescue group that posted about the situation on Facebook, it cried out for help, unable to move as one side of his body and his face were stuck in the substance.  

  • Parents make heartbreaking decision over son with autism

    Parents make heartbreaking decision over son with autism

    Wednesday, May 24 2017 11:10 AM EDT2017-05-24 15:10:16 GMT
    KMOV has chosen not to identify him by name or show pictures of what he currently looks like. (Credit: Wallens)KMOV has chosen not to identify him by name or show pictures of what he currently looks like. (Credit: Wallens)

    A parent's love knows no bounds. But what happens when you truly believe your child is going to harm himself or someone else? One family tells News 4 they made a heartbreaking decision about their son with autism, all because they felt they had no other options. 

    A parent's love knows no bounds. But what happens when you truly believe your child is going to harm himself or someone else? One family tells News 4 they made a heartbreaking decision about their son with autism, all because they felt they had no other options. 

Air pollution impacts health and even contributes to millions of deaths each year. Until now, measuring pollution across the globe has been difficult. Land sensors are few and far between and only give a snapshot of pollution levels for a small area. In recent years, new satellites circling the Earth have instruments on board that can now measure pollution on a global scale. That satellite data is fed into computer models to give scientists a more accurate idea of how pollution is distributed through the Earth's atmosphere. 

The below map shows how the distribution of air pollution related to human activity between 2000-01 and 2008-09 chance across the Earth. This is a computer simulation based on the satellite data. The simulation focuses on pollution from humans burning fossil fuels and forests. Natural particles in the air, such as blowing dust, volcanic ash, and sea salt, were not included. 

According to NASA Earth Observatory, orange shows where pollution increased while blue indicates where levels decreased. Note the significant decrease over much of Europe and eastern North America. However levels increased dramatically over parts of Asia. 

"Asian countries, particularly China and India, have been releasing more particulate matter into the air as they urbanize, while European countries and the United States of America have seen pollution levels decline as more efficient, cleaner-burning technologies have become more widespread." says NASA Earth Observatory. 

The increase in Africa is not related to fossil fuel burning, but instead from farmers clearing the land for agriculture by burning the acreage. 

For more details on this topic click here.



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