Europe's so-called Emissions Trading System, first launched in 2008, was designed to raise the cost of polluting and discourage the production of greenhouse gases to protect the environment.
Blue Star Steel saves money buying scrap steel, and the environment is spared additional greenhouse gas emissions from a foundry.
To the extent that companies are testing environmental markets by moving ahead with tradable reductions of greenhouse-gas emissions, the environment profits.
The 5-door hatchback design also features chrome door handles, aerodynamic outside mirrors and a large greenhouse to provide a bright interior environment.
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And when you burn it, it's better for the environment in terms of greenhouse gases than carbon dioxide by a factor of about 18-to-1.
That is because cars produce local air pollution, which damages human health and the environment, and also produce greenhouse gases, which contribute to global warming.
The 2011 Nissan LEAF, which uses no gas, was also rated best-in-class for the environment based on emitting zero greenhouse gases or other traditional tailpipe emissions.
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If developing countries rely only on traditional energy technologies, we will lose the battle to limit greenhouse gas emissions and assure a livable environment in the coming century.
Among those that do, the definition varies: 55% define sustainability as the management of issues related to the environment (for example, greenhouse gas emissions, energy efficiency, waste management, green-product development, and water conservation).
The un-burned, leaked gas is 72 times more potent than carbon dioxide -- a greenhouse gas -- making it more damaging to the environment, Krupp said.
More general areas included are what percentage of the population voted and how many trust Parliament, the state of the economy and the environment - the latter measured in part using greenhouse gas emissions and air pollutants.
In this audio section, BBC World Service environment specialist Richard Black explains the so-called greenhouse effect, global warming, the implications for the human race and the significance of the Kyoto summit.
Europe pumped out fewer greenhouse gases in 2005, according to new data from the European Environment Agency.
The guide, released Monday, analyzes technology companies on operational efficiency and commitment to the environment based on factors including green products and efforts to reduce greenhouse gas emissions, said Casey Harrell, IT analyst at Greenpeace.
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The current challenge is not only the visible soot from wood and coal fires, or smog from poorly combusted gasoline and diesel, which affects human health in direct and obvious ways, but also invisible greenhouse gases, which do not directly affect human health but will impact our environment significantly.
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In February, the German environment ministry said it expected there was a 1.6% rise in greenhouse-gas emissions in Germany last year.
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The environment minister also answered a number of other questions on renewable energy, homelessness and greenhouse gases.
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