There are 200,000 oil and gas wells, almost 2,000 dairy farms and hundreds of landfills in California.

加利福尼亚州有20万个油气井，近2,000个奶牛场和数百个垃圾填埋场。

The Trump administration also loosened rules on methane emissions from leaks and flares in oil and gas wells.

特朗普政府还曾放松了对油井、气井泄漏和燃烧产生的甲烷排放的规定。

It urged them to start studying and publishing information about the amount of methane released from abandoned oil and gas wells.

这条建议督促各国开始研究并公布废弃油井和天然气井排出的甲烷量的数据。

Natural gas wells and pipelines are particularly vulnerable to cold temperatures.

天然气井和管道特别容易受到低温的影响。

This area is an island in a sea of natural gas wells.

该地区是天然气井海中的一个岛屿。

Sprouting gas wells pose a challenge over the use of public lands as well.

发芽的气井也对公共土地的使用提出了挑战。

In the first ten weeks of 2011, three hundred new gas wells were drilled in the USA.

2011 年前十周，美国新钻了 300 口气井。

Children who lived closer to natural gas wells in heavily-drilled western Pennsylvania were more likely to develop lymphoma, a rare cancer, researchers found.

研究人员发现，居住在宾夕法尼亚州西部天然气井附近的儿童更容易患淋巴瘤，这是一种罕见的癌症。

Some were on land. Others were on ocean oil-drilling structures. Some fires were in burning oil wells. Others were in natural gas wells.

有些是在陆地上，有些则是在海洋石油钻探结构上。一些是油井火灾，其他的则是天然气井火灾。

Instead, the researchers looked at health records to try to find out possible connections based on how close people lived to natural gas wells.

相反，研究人员查看了健康记录，试图根据人们与天然气井的居住距离找出可能的联系。

The researchers said their findings on early births and low birth weights among families living closer to gas wells were similar to the mixed results of similar studies.

研究人员表示，他们在靠近天然气井的家庭中发现的早产和低出生体重与类似研究的混合结果相似。

Last year global capital expenditure on wind and solar assets grew from $357bn to $490bn, surpassing investment in new and existing oil and gas wells for the first time.

去年， 全球风能和太阳能资产的资本支出从 3570 亿美元增长到 4900 亿美元，首次超过对新的和现有油气井的投资。