But scientists haven 't known why landfills make so much methane .
但是科学家们并不知道为什么垃圾填埋场能够产出这么多的甲烷。
How do you think that landfills will affect the living environment ?
你认为堆填区如何影响市民的生活环境?
Do you think that landfills will affect the living environment ?
你认为堆填区会否影响市民的生活环境?
Studies of landfills suggest they may take centuries to rot away .
垃圾填埋区的研究显示它们可能要花上几个世纪才会完全腐烂。
The environment in the landfills was not suitable for organisms that normally break down wood over time .
堆填区的环境不适合有机体,经过一段时间它们通常会把木材分解。
There were accidents in other landfills which made for hazardous operations .
而其他垃圾填埋场发生过的事故更使人们认识到了工作中的危险。
The company has diverted hundreds of tons of construction waste from landfills by upcycling the materials into habitable buildings .
这家公司将垃圾堆的几百吨的建筑垃圾通过回收升级利用这些垃圾的方式转化成可居住的住宅。
And the cycle of exchanging old electronics for new , after just a few years , increases the amount of e-waste that 's shipped overseas or dumped into landfills .
Every year , about 10 million tons of paper winds up in american landfills and incinerators , which is not only wasteful but adds co2 to the atmosphere .
每年,约有1000万吨纸在美国的垃圾场和焚化炉中消失,既浪费了资源,同时向大气中排放二氧化碳。
In arizona , the bureau of land management has begun a program to repurpose landfills and abandoned mines for renewable energy .