Non-profit group the Environmental Defense Fund estimates that there will be an additional 7.5-18 billion tonnes of greenhouse gases - three times the amount emitted in a year at present - emitted by 2055.
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“我们将需要呈现的素材贴在模型里，再做视觉调整，确定呈现效果后，再用激光投影机映射到黄鹤楼上。”韦宇翔说。
“近代史上，我国落后挨打的根子之一就是科技落后”，揭示历史演进的深层原因。
How a “trivial” change yielded a 13× throughput increase.