What's more, says David Keith who directs the University of Calgary's Energy and Environmental Systems Group, it would be pretty easy to do.

而且，卡尔加里大学能源和环境系统小组的负责人大卫·基思说，要这么做很容易。

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As the name implies, it focuses on environmental matters such as energy and food systems.

正如名字包含的意义一样，该网站关注的是诸如能源和粮食体系这样的环境问题。

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Once the energy and fossil fuel used in herbicide production are taken into account, claims of environmental sustainability for GM RR soy with no-till systems collapse.

一旦将除草剂生产中消耗的化石燃料能源一并考虑，宣称抗草甘膦除草剂转基因大豆及其免耕系统有助于环境可持续性的理由立刻坍塌。

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The program, launched in September 2001, focuses on reform of electric power markets, the geopolitical consequences of newly emerging global natural gas markets, energy services for the world's poor, and managing climate change and other environmental consequences of modern energy systems.

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