河道淤积大幅减少：每年进入黄河的泥沙量减少了1亿多吨。

Sedimentation of waterways was dramatically reduced: The flow of sediment from the Plateau into the Yellow River has been reduced by more than 100 million tons each year.

在上个月谈判进入关键阶段之前，中国已囤积了1亿多吨铁矿石，相当于三至四个月的进口量。

Before talks came to a head last month, China had amassed more than 100m tonnes of ore onshore, equivalent to three or four months 'of its annual imports.

1991年皮纳图火山爆发时释放了超过20亿多吨的二氧化硫进入大气，致使两年左右气温下降了1度半。

The Mount Pintaubo eruption in 1991 released more than 20 million tons of sulfur dioxide into the atmosphere, causing a drop in temperature by half a degree Celsius for about two years.