A nonprofit backed by Al Gore and other big environmental donors says it can track emissions down to individual power plants, oil fields and cargo ships.
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By Raymond Zhong
Upstream from Shanghai along the Yangtze River, a sprawling factory complex in eastern China is churning out tens of millions of tons of steel a year — and immense quantities of planet-warming gases.
The plant’s owner has not disclosed how much the site emits. Now, though, researchers say that by peering down from space, they have found that the factory’s emissions are likely higher than those of any other steel plant on Earth.
Here’s how they did it.
How Satellites Help Researchers Track Emissions
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