The us and Europe want to use biofuels to combat global warming and to strengthen energy security.

美国和欧洲希望利用生物燃料来对抗全球变暖，并增强能源安全。

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Talk of climate change and energy security led to a surge in crops grown to fill fuel tanks rather than stomachs, bringing food price hikes and changes in land use.

气候变化和能源安全的话题导致了作物种植激增以填满燃料箱，而不是为了填肚子，使得食品价格上涨和土地利用变化。

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The use of renewable biofuels in lieu of fossil fuels is said to reduce greenhouse gas emissions and increase energy security (but see Carbon emissions).

人们认为，用可再生的生物能源代替化石能源能够减少温室效应气体的排放，提高能源供给的安全性。

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Both Presidents reiterated their belief that a more efficient use of energy, and the use of cleaner and renewable sources and technology are fundamental elements for energy security, which contributes to sustainable economic growth and the protection of the environment.

WHITEHOUSE: President Obama on the United States and Latin America

The ability to use fuels other than petroleum is critical to our energy security because it will increase our flexibility and reduce the services' vulnerability to rapid and unforeseen changes in the price of oil.

WHITEHOUSE: Advancing National Security Through Energy Security

While the company provides scant details on its founder?s backgrounds, in an online video the company's chief executive, Sean McCarthy, claims the company stumbled upon a way to use magnets to generate energy when researching a way to power security cameras.

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