The predicted effect of global warming for the environment are varied. Expected climate changes, because of global warming have the potential to lead to future large-scale and possilby permanent changes in our climate; resulting in impacts at continental and global scales. Increasing tempuratures are likely to lead to increasing precipitation, but the effects on storms are less clear. Over the course of the 20th century, evaportation has declined worldwide; this is thought by many to be explained by gloabl dimming. As the climate growns warmer and the causes of global dimming are reduced, evaporation will increase as a result of warmer oceans.
Global warming has a huge effect on the oceans as well. With an increasing average global tempurature, the water in the oceans will expand in volume, and the additional water enters them which has previously been locked up on land glaciers. The world's oceans soak up much of the carbon dioxide produced by living organisms, either as dissolved gas or as skeletons or tiny marine creatures that fall to the bottom to become chalk or limestone.
Global warming again has many effects and in some ways can hurt the ecosystems more than anything on earth. Atmospheric carbon dixide is rare in comparison to oxygen. This carbon dioxide starvation becomes apparetn in photorespiration, where there is so little carbon dioxide that oxygen can enter a plants chloroplast and takes the place where carbon dioxide would normally be.
In historic times, glaciers grew during the Little Ice Age, a cool period from about 1550 to 1850. Until around 1940, glaciers around the world retreated s the climate became warmer. Glacier retreat declined and reversed, in many cases, from 1950 to 1980 as a sight of global cooling occured. Except for the ice caps and ice sheets of Arctic and Antarctic, the total surface area of glaciers worldwide has decresed 50% since the end of the 19th century.
Alicia
No comments:
Post a Comment