小组计算出，一旦双重的分解进化开始完全生效，死去的树木将会释放出超过50亿吨的二氧化碳。
The team calculates that once that decomposition process has kicked in completely, the dead trees will release over time some 5 billion tons of CO2.
2005年2月16日正式生效的《京都议定书》，就是规范和约束各国排放二氧化碳等温室气体的国际协定。
On 16 February 2005 the Kyoto Protocol entered into force which is a international agreement to norm and constraint each country of the emissions of carbon dioxide and other greenhouse gases.
2005年2月16日正式生效的《京都议定书》，就是规范和约束各国排放二氧化碳等温室气体的国际协定。
On 16 February 2005 the Kyoto Protocol entered into force which is a international agreement to norm and constraint each country of the emissions of carbon dioxide and other greenhouse gases.
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