They say rich nations created the problem, so they should take most of the responsibility for reducing greenhouse gases.

VOA: special.2009.12.26

And so, when you think about how much cement concrete are consumed annually on the planet, this becomes a considerable point source of greenhouse gas emissions.

当你想到,在地球上每年要消耗多少的水泥混凝土的时候,这将是温室气体排放的,一个主要来源。

麻省理工公开课 - 固态化学导论课程节选

is actually looking at how to regulate greenhouse gases under existing environmental laws,

其职务是研究在现行的环境法下如何管理温室气体的排放，

全球变暖与国力 - SpeakingMax英语口语达人

Greenhouse gas emissions, such as carbon dioxide, are created in part by burning oil and coal for transportation and electricity.

VOA: special.2009.12.26

And as you know, carbon dioxide is implicated as a greenhouse gas.

你知道的，二氧化碳意味着温室气体。

麻省理工公开课 - 固态化学导论课程节选

She says that raising animals for food is responsible for the release of more greenhouse gases than all forms of transportation combined.

VOA: special.2009.11.06

Twenty-one nations around the world recently joined forces to better understand and prevent greenhouse gas emissions from farms.

VOA: special.2010.01.05

The Global Research Alliance on Agricultural Greenhouse Gases was launched at the United Nations conference on climate change.

VOA: special.2010.01.05

An official of the European Commission's Directorate General for Research says agricultural greenhouse gas emissions can be cut.

VOA: special.2010.01.05

But he hopes to raise billions through a system in which businesses that release greenhouse gases would buy and trade pollution permits.

VOA: special.2009.02.27

The U.S.D.A.will share the research with other countries in the Global Research Alliance on Agricultural Greenhouse Gases.

VOA: special.2010.01.05

Building owners say such make-overs are very important to reduce levels of greenhouse gases in New York.

VOA: special.2009.05.22

It asks major polluting countries to voluntarily reduce gases linked to what scientists call the greenhouse effect.

VOA: special.2010.01.19

The voluntary agreement urges major polluters to make deeper cuts in the release of greenhouse gases.

VOA: special.2009.12.26

United States Agriculture Secretary Tom Vilsack said no one single nation can fight agricultural greenhouse gas emissions and increase food production at the same time.

VOA: special.2010.01.05

Experts say that agriculture provides fourteen percent of the world's greenhouse gas emissions each year.

VOA: special.2010.01.05

A common design looks like a high tunnel.Unlike a greenhouse, which uses a heating system, a hoop house is heated by the warmth of the sun.

VOA: special.2009.12.22

At the same time, orchids produced in factories have become an important greenhouse crop.

VOA: special.2010.04.06

You can also start the seeds in your home or a greenhouse.

VOA: special.2009.04.21

Hoop houses are sometimes called a temporary greenhouse or passive solar greenhouse.

VOA: special.2009.12.22

Agricultural experts blame a number of farm activities for producing greenhouse gases.

VOA: special.2010.01.05

The United States and China are the biggest producers of greenhouse gases.

VOA: special.2010.01.19

The projections are estimates of future amounts of such greenhouse gases.

VOA: special.2010.11.23

Scientists say Earth's atmosphere acts like a greenhouse.

VOA: special.2010.01.19

Today we discuss the greenhouse effect.

VOA: special.2009.12.22

"We need to see EPA regulation of greenhouse gases immediately and we need to see aggressive regulation of greenhouse gases."

VOA: standard.2009.12.09

The A.U.chairman said Africa is most vulnerable to climate change, despite accounting for only 3.5 percent of global greenhouse emissions.

VOA: standard.2009.10.13

No one will be spared. Until now,nations have focused almost solely on ways to mitigate climate change by reducing greenhouse gases.

VOA: standard.2009.08.31

The orchids in the Botanic Garden's greenhouse belong to about 5,000 species and there are more than 8,000 plants.

VOA: standard.2010.02.21

The goal was to reach a legally binding agreement to reduce greenhouse gas emissions, blamed for heating up the atmosphere.

VOA: standard.2009.12.06