Image from NASA shows how much of the world is currently on fire

Forest fires have increased and increased in recent decades. These fires are caused by extreme temperatures, strong winds and dry conditions and destroy millions of hectares of land, forests and other structures.

NASA satellites actively detect fires around the world and provide a unique tool to map the extent of changes in ecosystems. A newest image from NASA & # 39; s world view shows the exact locations of the new forest fires worldwide. Red dots in the image mark the burning areas and suggest that many of these fires are deliberately set to manage land. Farmers often use controlled firing to remove the natural vegetation of the land. But these fires also create smoke that can bridge hundreds of thousands of kilometers and affect air quality and visibility, ultimately affecting ecosystems.

The new picture suggests that Africa has the most concentrated fires. North America is also plagued by forest fires that are likely to become more frequent and serious due to climate change. In South America, Chile has experienced terrible forest fires in recent years. In 2016-2017 alone, fires burned more than 1 million hectares in central Chile, which is almost double the proportion of the state of Rhode Island. It was also the largest area that was burned during a single fire season since the sixties.

"Chile replaced more heterogeneous, less flammable indigenous forests with structurally homogeneous, inflammable exotic forest plantations at a time when the climate is getting warmer and drier, and this situation will likely spread future fires more easily and promote greater fires in the future." Dave McWethy, a researcher from the Montana State University, said.

Almost two million hectares in the United States are on fire. Six new dangerous and deadly fires broke out last week in Idaho, Nevada and Oregon. Smoke from these fires is transported over long distances and contributes to the formation of small particles, called aerosols, which can get into people's lungs and affect their health. This new image of global forest fires was obtained on 22 August 2018.

"NASA's Earth Observing System Data and Information System (EOSDIS) Worldview application provides the ability to interactively browse 700 global full resolution satellite images and then download the underlying data." NASA said. "Many of the available layers of images are updated within three hours of observation, so that the entire earth becomes visible as it looks" now ".

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