Effects of Global Warming on Weather

Effects of Global Warming on Weather

Higher temperatures will probably mean more precipitation but it is unclear about what the effects will be. Global warming will also mean more extreme weather and hurricanes according to Kerry Emanuel. The number of hurricanes that are category 4 or 5 (wind speeds above 56 metres per second) has gone up 15% between 1970 and 1990. The rain from them has increased 7% in the twentieth century. It is unclear however if this is only due to global warming.

In the past hundred years evaporation has decreased however is the climate grows warmer evaporation will increase due to warmer oceans. This will cause heavier rainfall and more erosion.

Global warming seems to be changing local climates. Over the last 50 year Canada, Alaska, and Russia have been experiencing the melting of permafrost. Again this changes ecosystems and increases bacteria in the soil.

A study (published in Science) of changes to eastern Siberia's permafrost suggests that it is gradually disappearing in the southern regions. This has lead to nearly 11% loss of Siberia's many lakes. Siberia is also experiencing with the melting of permafrost the formation of new lakes. I am noticing that all the changes of climate change are pretty unpredictable.