| environ. |
climatic change The long-term fluctuations in temperature, precipitation, wind, and all other aspects of the Earth's climate. External processes, such as solar-irradiance variations, variations of the Earth's orbital parameters (eccentricity, precession, and inclination), lithosphere motions, and volcanic activity, are factors in climatic variation. Internal variations of the climate system, e.g., changes in the abundance of greenhouse gases, also may produce fluctuations of sufficient magnitude and variability to explain observed climate change through the feedback processes interrelating the components of the climate system (温度、降雨量、风以及地球气候的所有其他方面的长期波动。外部过程，如太阳辐照度的差异，地球轨道参数(离心率、运动和倾斜)、岩石圈运动、火山活动的不同，都是导致气候差异的因素。气候系统的内部差异如温室气体的变化，可能引起充分的巨大和变化的波动，通过与气候系统相互关联的部分的过程反馈，来解释观测的气候变化。) |
