“An environmental group says it will spend millions to launch a satellite that could help fight climate change by identifying methane leaks with pinpoint accuracy.
Methane remains one of the thorniest climate problems. It is the major component of natural gas, which produces half the carbon dioxide of coal when burned to run electric plants. But when methane leaks, it is a potent greenhouse gas that traps more than 80 times as much heat as carbon dioxide in its first 20 years in the atmosphere. By some estimates, human-caused emissions of methane are thought to be responsible for about a quarter of the warming being experienced today.”
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