On its own, plant and animal agriculture contributes 9 percent of all the country's greenhouse gas emissions.

就其本身而言，动植物农业占该国温室气体排放总量的9%。

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The details of the greenhouse trial are published in Plant Biotechnology Journal.

温室试验的细节刊登在《植物生物科技杂志》上。

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And digging holes to plant saplings releases greenhouse gases from the soil.

为种植小树而挖坑也会从土壤中释放温室气体。

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And atmospheric carbon dioxide enhances plant growth, which greenhouse gardeners have known for decades.

FORBES: Global Warmists Allergic To The Truth During Pollen Season

The new centre will stand alongside the Eden Project's plant-filled biomes - large greenhouse domes, on the site of a former china clay pit near St Austell.

BBC: NEWS | UK | England | Cornwall | Eden's ?12m education plans

Clearing land to plant food for biofuel releases the greenhouse gas carbon dioxide (CO2) through ploughing and can involve deforestation, which reduces the "carbon sinks" - the trees that absorb CO2.

BBC: EU acts against harm from biofuel crops