<s>[INST] The next text is a question of a member of the European parliament:"Three combustion plants for sludge, household waste and railway sleepers respectively are planned in the cross-border Europark industrial zone between the municipality of Coevorden in the Netherlands and Emlichheim in Germany. The combined processing capacity will be 720 000 tonnes a year. Electricity will also be generated (60 Megawatt hours a year) which is to be marketed as 'green power'.  Railway sleepers are treated with wood preservatives such as tar and creosote and should be regarded as hazardous waste under Decision 2000/532/EC. The incineration of railway sleepers is controversial owing to the proven emission into the air, soil and water of fine dust, heavy metals (chromium and arsenic), hydrocarbons and dioxins.  Old railway sleepers are so heavily contaminated with chemicals that they need to undergo detoxification in special plants just like hazardous chemical waste.  The developers of the combustion plants are keen to have the licensing issue settled by 20 June 2004 as after that date it will no longer be possible to build waste incineration plants. The licence would be valid for 20 years.  Does the European Commission not agree that the incineration of impregnated railway sleepers should be prohibited?  Does it not share the view that electricity generated from waste incineration should never be designated green power as this misleads consumers about its origin?"
Analyze carefully the text and assign it to the most relevant policy area among those listed below. Do not explain your answer and return only a number.
Policy area numbers: 1 = Macroeconomics
2 = Civil Rights, Minority Issues and Civil Liberties
3 = Health
4 = Agriculture and Fisheries
5 = Labour, employment and pensions
6 = Education
7 = Environment
8 = Energy
9 = Immigration
10 = Transportation
12 = Law and Crime
13 = Social welfare
14 = Regional and Urban issues and Planning
15 = Banking, finance and domestic commerce issues
16 = Defence
17 = Space, science, technology, and communications issues
18 = Foreign trade
19 = International affairs and foreign aid
20 = Governance and government
21 = Public Lands, Water Management and Territorial Issues
23 = Culture and media
[/INST]. Answer = [7]. </s>
Three combustion plants for sludge, household waste and railway sleepers respectively are planned in the cross-border Europark industrial zone between the municipality of Coevorden in the Netherlands and Emlichheim in Germany. The combined processing capacity will be 720 000 tonnes a year. Electricity will also be generated (60 Megawatt hours a year) which is to be marketed as 'green power'.  Railway sleepers are treated with wood preservatives such as tar and creosote and should be regarded as hazardous waste under Decision 2000/532/EC. The incineration of railway sleepers is controversial owing to the proven emission into the air, soil and water of fine dust, heavy metals (chromium and arsenic), hydrocarbons and dioxins.  Old railway sleepers are so heavily contaminated with chemicals that they need to undergo detoxification in special plants just like hazardous chemical waste.  The developers of the combustion plants are keen to have the licensing issue settled by 20 June 2004 as after that date it will no longer be possible to build waste incineration plants. The licence would be valid for 20 years.  Does the European Commission not agree that the incineration of impregnated railway sleepers should be prohibited?  Does it not share the view that electricity generated from waste incineration should never be designated green power as this misleads consumers about its origin?