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I need some assistance with these assignment. air pollution and its threats Thank you in advance for the help! As a basis of Environmental Accounts between the years 1990 and 2003, the overall downfall of greenhouse gas emissions collapses 8.1 percent that is, 786.3 million to 722.3 million tonnes of carbon dioxide. However, there has also been an increase in greenhouse gas emissions which was about 1.6 percent (in 2003). Electricity generators are held responsible for this increase in emissions.

As far as the gas, water, and electricity companies are concerned, a fall in the emission of greenhouse gases has again seen. It ranges from about 218.6 million tonnes to 192.6 million tonnes from the year 1990 to 2003. The core cause is said to be the excessive use of natural gas instead of coal. However, underlying data show the altitude of greenhouse gas emissions from the electricity generators has augmented in current years. Emissions mounted 6. 7 percent on the previous year as a result of the larger use of coal for production and a fall in the net level of electricity introduced via the interconnector with France.

Greenhouse gas emissions from the mechanized industries fell from 180.7 million tonnes to 129.3 million tonnes from 1990 to 2003, which is about a fall of 28.5 percent. On the other hand, emissions rose by 3.0 percent from a low of 125.5 million tonnes (2003 and 2002). The recent increase replicates an increase in emanations from the metal making industries.

The downward trend was more or less subjected to exceptions. For example, the emission of greenhouse gases from the transport and communication industries was 48.4 percent more than in 1990 that in 2003. The transport and communication industries were accountable for discharging, in 2003, the counterpart of 95.7 million tonnes of carbon dioxide evaluated with 64.5 million tonnes in 1990. Their greenhouse gas releases rose 5.2 percent on 2002, largely reflecting the progressing rise in the number of UK owned ships subsequent the introduction, in 2000, of the UK Tonnage Tax.