Each year, the world's cars, trucks, power plants, and factories emit billions of tons of extra carbon dioxide into the atmosphere. But where does it all go?

This mesmerizing new animation from NASA simulates a year in the life of all the carbon dioxide — the main gas responsible for global warming — in the atmosphere. The data is from 2006 and yes, it looks like a lava lamp:

More precisely, what this video shows is concentrations of carbon dioxide, ranging from 375 parts per million (in blue) to 385 ppm (in red) up to 395 ppm (in pink). It also shows carbon monoxide in white.

Carbon dioxide emitted in the US quickly travels around the world

As you can see, carbon dioxide spreads fairly rapidly around the world. That's a key reason why global warming can't be solved by just a few countries acting alone. Emissions from one region don't just affect that region. Carbon-dioxide emissions from the eastern United States get picked up by westerly winds and are carried quickly across the Atlantic. Emissions in China travel far and wide.

As that extra carbon dioxide mixes in the atmosphere, it traps extra heat on the Earth's surface and warms up the planet. On the whole, carbon-dioxide concentrations in the atmosphere have risen from 270 parts per million before the Industrial Revolution to nearly 400 ppm today, largely because we've been burning fossil fuels. As that number keeps rising, it will raise surface temperatures, melt land ice, hike sea levels, and bring all sorts of other changes to Earth's climate.

This NASA simulation is the first to show in such precise detail precisely how carbon-dioxide moves around the atmosphere. Among other things, it reveals a significant difference in concentrations over the Northern and Southern Hemisphere. It also shows how plant growth in the spring absorbs some of the carbon-dioxide in the air (and then releases it again in the winter). It also revealed some surprises — like how the Himalayas block carbon dioxide from China's industrial base from traveling west:

The visualization was created by NASA's GEOS-5 computer model, which took data on atmospheric conditions and greenhouse-gas emissions and simulated the behavior of the Earth's atmosphere between 2005 and 2007. The hope is that this more precise modeling can help scientists better understand exactly where all the carbon-dioxide we're pumping out goes — and how it's warming the planet.

How humans have disrupted the carbon cycle

Before the Industrial Revolution, the Earth's atmosphere already contained some carbon-dioxide — roughly 270 parts per million. (That's why the planet wasn't a frigid wasteland.) Overall CO2 levels were regulated by the natural carbon cycle: Animals would breathe out carbon-dioxide, plants would absorb it to convert sunlight to energy, and the oceans and soils would both absorb and emit CO2.