Climatic changes, desertification and the Republic of Sudan
Meteorological data for a period of 30 to 50 years was analysed to ascertain the climatic changes in the Republic of Sudan. The study confirms that the temperatures are rising and rainfall declining. Rigorous analysis of relative humidity, clouds
, radiation and evaporation also confirms the changing pattern, a trend which may accelerate environmental degradation and desertification in Sudan.
Impact of climate change and human activity on flow and sediment of the rivers - the Yellow River (China) example
The Yellow River, China, is known for its extremely heavy sediment load and very small flow. As to the prediction of climate change at regional level precision is subject to great uncertainty, human activities will have more significant effect
on changes of flux and sediment of the river over the next 20 years. Owing to the development of irrigation and industry and possible success of soil conservation in the Loess Plateau, it is expected that the flow of the Yellow River to the sea