HC Deb 03 July 1974 vol 876 cc385-7
Mr. Douglas-Mann

asked the Secretary of State for the Environment whether he has considered the report published in Nature, at page 641, of the changes in ozone levels in the atmosphere since 1965 and its implications in relation to climatic changes and exposure to solar radiation; and whether he will consider investigations into the contribution made to this problem by atmospheric pollution.

Mr. Denis Howell

Yes, Sir. The Meteorological Office is actively pursuing a research programme on the effects of pollutants on stratospheric ozone levels and climate, the preliminary results of which are reassuring.

Mr. Douglas-Mann

Is my hon. Friend aware that if the decline of ozone levels continued at the present rate human life on this planet would become totally impossible? Is he further aware that since I tabled this Question further reports have appeared in Nature, which is a journal notoriously scornful of ecological alarm, suggesting that the fragility of the ozone layer is a matter of serious concern and expressing anxiety about the slow build-up of ozone-destructive agents in the atmosphere? Will my hon. Friend indicate the level of Government investigation into this subject, which is one of potentially absolutely disastrous concern not only to the British people but to the entire human race?

Mr. Howell

If those considerations were entirely accurate I would be concerned, but I have myself studied the report in Nature which presents the data on falling ozone levels from a single point in the Southern Hemisphere. I am advised that further observations by scientists of the Meteorological Office and elsewhere indicate that total ozone levels in the Northern Hemisphere are generally rising. There is little doubt that these fluctuations are caused by natural causes.

Mr. Grylls

Will the hon. Gentleman undertake to investigate the possible greater use of solar water heating equipment which can now be got for about 600 dollars in America? Will he consult the building trade with a view to securing greater use of solar water heating to conserve ordinary fuels?

Mr. Howell

Research into that matter is already going on, and I am happy to consider any further suggestions put by any hon. Member.