Coal contains less energy per unit of weight than weight than natural gas or oil; it is difficult to transport, and it is associated with a host of environmental issues, among them acid rain.

煤的单位能量含量低于石油和天然气，而且会导致包括酸雨在内的一系列环境问题。

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In Indonesia, rain forests are felled to plant palms for the palm oil, which is a component of biofuels.

在印度尼西亚，砍伐雨林是为了种植棕榈树，获取棕榈油，这是生物燃料的组成部分。

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The fungus, recently discovered in Iran, grows naturally in crude oil and removes the sulphur and nitrogen compounds that lead to acid rain and air pollution.

最近，在伊朗发现了一种在原油中自然生长的真菌，可清除石油中导致酸雨和空气污染的硫氮化合物。

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"Other than that it was driving rain the first day." Crews visually scan for ribbons and sheets of oil.

VOA: standard.2010.07.05

"Bad weather in spring prevented honey bees in many areas from collecting nectar from early flowering crops such as oil seed rape, and the rain continued in many places throughout June and July preventing honey bees from foraging on later crops, " he said.

BBC: Honey harvest 'devastated' by wet summer

Deforestation rates in Peru are significantly lower than in Brazil, Ecuador or Colombia and the Andean nation has large reserves of oil, gas and minerals in its rain forests.

CENTERFORSECURITYPOLICY: Zeroing in on Peru

Revelations that earlier this year a handful of oilfield pipelines (damaged by hurricane-force winds and rain) leaked small amounts of oil onto the island weakened his faith further.

FORBES: Energy