NASA news: Images from the space agency show wildfire ACROSS GLOBE | Science News



Satellite images of the space agency paint a picture of how bad widlfires have become around the earth.

Although no data are available to indicate how much land is on fire all over the world, 3.3 million hectares or 5,126 miles are already ablaze in the United States alone.

US authorities said there are currently more than 100 major forest fires across the country, including three of the largest in California history.

Although many of the fires are wild, NASA says that those in Africa are likely to be agrarian.

One explanation is: "Using heat bands to detect active areas of combustion, each red dot is a fire.

"The fires in Africa are probably agricultural, while elsewhere the fires are probably wildfire.

"The location, the widespread nature and the number of fires indicate that these fires are deliberately set to manage land.

"Farmers often use fire to bring nutrients to the soil and to remove the soil from unwanted plants.

"While fire helps to improve crops and grasses for meadows, the fires also produce smoke that affects air quality."

Europe is largely emptied by forest fires through South America, just like its northern counterpart, is currently plagued by fires.

Chile and Brazil experience the most fires, and NASA says they are a mixture of wild and agricultural fires.

A study conducted by Montana State University found that: "In addition to low humidity, strong winds and extreme temperatures – some of the same factors that contribute to forest fires in the United States – central Chile experiences a large drought and large parts of the various indigenous forests. turned into more inflammable tree plantations.

NASA added: "Fires are also often used in the dry period of Brazil to deforest land and remove it for livestock or other agricultural or extraction purposes.

"The problem with these fires is that they get out of control quickly because of climate problems, and hot and dry conditions in combination with wind drive fire far from their originally intended combustion area."


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