Global warming
This is a long term change in temperature of the earth’s climate that is related to air pollution and green house effect. Green house effect is of great concern because the global temperature is projected to go up by between 3 – 5oC by the year 2100
Acidification
Industrial, agricultural and other anthropogenic activities have greatly modified the global biogeochemical cycles of nitrogen (N) and sulphur (S). It has been indicated that humans have doubled the natural rate of Nitrogen fixation, and atmospheric Nitrogen deposition rates have increased between 3 to more than 10 times, compared to pre-industrial times.
Several environmental problems are directly related to disturbance of the Sulphur and Nitrogen cycles; these include acidification and eutrophication of soils and water. Large-scale acidification was identified as an important environmental problem in North America and Europe about 30 years ago.
marto answered the question on March 20, 2019 at 11:50
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