The main sources are humans which is why it is stated that the global warming is man made. The levels have increased beyond all measure, increasing since the 1950s by a 100 CO2 parts per million, and it keeps increasing by 2ppm on a yearly basis. The statistics from the industrial revolution era are not much different and show how much we've increased the CO2 in modern times.
Agriculture, forestry, and fishing industries.
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Shillong is in a hilly area and the hills trap the monsoon winds, so that Shillong becomes rainier than Kolkata.
Explanation:
