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Evidences of Extreme Weather Changes
Precipitation and Atmospheric Moisture Change
Climate Variability and Climate Change
Climate Variability and Global Warming
Evidences of Climate Variability
Impacts of Climate Change
Policies on Climate Change
Stand of United Nations on Climate Change
What is climate Variability?
How has the climate of the earth changed over time?
What is the evidence for climate variability?
Is there such a thing as global warming?
Why do scientists think there is global warming?
What will happen if global warming continues?
What is the hottest it has ever been on earth?
What is the coldest it has ever been on earth?
Can we stop global warming?
Ice Core Data
Tree Ring Data
Geological Data
Sea Core Data
Satellite Data
Other Data
Geologic Times and Dates
Climate Variability Pics
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A lot of long-term changes within the earth’s climate are observed over the years including extreme weather such as heavy precipitation, intensified tropical cyclones, heat waves and droughts. The trends toward powerful storms as well as longer and hotter dry periods are observed and assessed within the Fourth Assessment Report of IPCC. Climate change is really taking a toll on us. The warmer temperatures mean a lot of evaporation and a warm atmosphere will not be able to hold a lot of moisture so more water fall into the earth as precipitation. In addition, dry regions are to lose a lot of moisture if the weather tends to get hotter, which means that there will still be droughts and desertification.
This increase in precipitation has increased in almost all land areas. Highly increase precipitation events have been observed within the eastern parts of South and North America, central and northern Asia as well as in northern Europe. Moreover, there is evidence for increase in tropical cyclone activity since the early 70s within the North Atlantic.
Drying is also an evidence and effect of climate change. It has been observe in large regions such as the Mediterranean, parts of south Asia and South Africa as well as in the Sahel.
Furthermore, the total available waters in Africa’s big basins such as Lake Chad, Senegal and Niger decreased by 40 to 60 percent. There also have been reports of worsened desertification by low average annual soil moisture, runoff and rainfall especially in northern, western and southern Africa.
The Rhine Floods of the years 1996 and 1997 as well as the 1998 Chinese floods and the eastern European floods of 2002 and 1998 along with the European and the Mozambique floods of 2000 are just example of powerful storms and examples of climate impact due to climate change.
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