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Natural gas emits only half the carbon dioxide of coal when burned, but if methane leaks when oil companies extract it from the ground in a sloppy manner - methane is far more potent a greenhouse gas than carbon dioxide - it can wipe out all the advantages of natural gas over coal.
Thomas Friedman
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Interpretation

What this quote means

Natural gas can be a cleaner energy source than coal, but methane leaks can negate its benefits.

This quote highlights the environmental implications of using natural gas instead of coal. While natural gas produces less carbon dioxide when burned, methane, which can leak during extraction, is significantly more harmful to the environment as a greenhouse gas. Therefore, if proper extraction practices are not followed, the potential climate benefits of natural gas over coal can be diminished.

Themes

Natural GasMethaneGreenhouse GasClimate ChangeCarbon DioxideEnvironment

In practice

Example use cases

In a speech about climate policy, a politician might use this quote to emphasize the importance of careful energy extraction practices.

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