16. Mr. Alan W. WilliamsTo ask the Secretary of State for the Environment what is his latest assessment of the damage caused by acid rain to mountain streams in upland Britain and to trees across the country.
§ Mr. TrippierThere is clear evidence suggesting that the 40 per cent. reduction in the United Kingdom's sulphur emissions over the past 20 years is helping to bring about a decrease in acidification in some areas. The latest work on trees shows little evidence of widespread acid rain impact.
Mr. WilliamsWhat does the Minister think of National Power's proposal to switch Pembroke power station to the use of orimulsion fuel? Does he recognise that that will result in a massive increase in sulphur emissions which will mean that Pembroke will be the single largest sulphur emitter in Britain and, as it is sited on the western coast, it is in line to produce the maximum environmental damage? If that proposal goes ahead, will he insist that it is accompanied by flue gas desulphurisation?
§ Mr. TrippierTo make it clear to the hon. Gentleman, the commitment that has been given to the House and to the country by my right hon. Friend the Secretary of State for Energy in terms of meeting the large combustion plant 314 directive, actually stands. The Government's commitment to cut emissions from large combustion plants from 1980 levels to 60 per cent. by the year 2003 and to cut NOx by 30 per cent. by 1998, is a target which will be met.