In addition to the internal variability of the global climate system itself, there is the added factor of external influences, such as volcanoes and solar activity.
除了全球气候系统本身的内部变化之外，还有外部影响的附加因素，如火山和太阳活动。
2
The releases would be a small addition to known impacts of global warming.
结果显示这种排放只会对已知的全球变暖产生小幅影响。
3
That means in addition to Global Technology Services Daniels now oversees IBM Global Business Services, the company’s consulting operation.