NASA has released a fascinating animation, focused on a satellite view of Earth’s fires from July 2002 to July 2011. The animation shows that Africa has more burning than any other continent, with some 70 percent of the world’s fires happening there. It also unintentionally shows ice and snow covering Earth and then receding as the seasons pass, and – with the waxing and waning of fire and ice – it shows something we all know in theory but rarely get a chance to witness on such a grand scale. This is, change itself is a constant in our world.
I found both a narrated and non-narrated version of this video and can’t decide which I like best. Here’s the silent one. Watch for the red. Those are the fires.
NASA’s Terra and Aqua satellites – both of which carry an instrument called MODerate Resolution Imaging Spectroradiometer, aka MODIS – obtained these images.
Some of these fires are managed by humans for agricultural clearing or other purposes, by the way, and some are surely human-caused accidents. Many are started by lightning or other natural causes.
If Africa has the most fires, here in North America fires are relatively rare. North America has just 2 percent of the world’s burned area each year. The fires that receive the most attention in the United States – the uncontrolled forest fires in the West – are less visible in this animation than the wave of agricultural fires prominent in the Southeast and along the Mississippi River Valley.
Some of the large wildfires that ravaged my home state of Texas in 2011 are also visible, although the animation stops before August 2011 when the most damaging Texas fire of this year – the Bastrop fire – raged.
Okay, enough reading? Here’s the narrated version.
Chris Justice of the University of Maryland, College Park, a scientist who leads NASA’s effort to use MODIS data to study the world’s fires, said:
What you see here is a very good representation of the satellite data scientists use to understand the global distribution of fires and to determine where and how fire distribution is responding to climate change and population growth.
Bottom line: A new NASA animation shows Earth’s fires from July 2002 to July 2011. Africa has more fires and more burning than any other continent, with some 70 percent of the world’s fires happening in Africa. North America, by contrast, has only 2 percent of the world’s fires.
Deborah Byrd created the EarthSky radio series in 1991 and founded EarthSky.org in 1994. Today, she serves as Editor-in-Chief of this website. She has won a galaxy of awards from the broadcasting and science communities, including having an asteroid named 3505 Byrd in her honor. A science communicator and educator since 1976, Byrd believes in science as a force for good in the world and a vital tool for the 21st century. "Being an EarthSky editor is like hosting a big global party for cool nature-lovers," she says.