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Презентация на тему The Problem of the Ozone Layer
Содержание
- 2. The ozone layer is a layer in
- 4. Ozone absorbs harmful ultraviolet radiation which is
- 5. Ground based measurements of Ozone were first started in 1956, in at Halley Bay, Antarctica.
- 6. Comprehensive satellite measurements of ozone started in
- 7. “Nimbus -7” was equipped with devices for
- 8. In 1985 the first ozone hole was discovered by the British scientists over Antarctica.
- 9. In spring 1998 the hole of South Polar Region mounted to the biggest area.
- 10. Biological effects of the ozone holes.The ultraviolet
- 11. Animals and plants suffer when the level
- 12. An increase of UV radiation effects on
- 13. It is known that in August 2010
- 14. Firstly, the launches of space rockets,Reasons of ozone layer depletion.
- 15. planes, that fly on the altitude
- 16. and supersonic planes damages the ozone layer a lot.
- 17. Secondly, the use of the natural resources produces lots of chemical compounds.
- 18. Cars and bus send more and more smog in the air.
- 19. One more source of organic pollution of atmosphere become a communal economy of cities.
- 20. Large amounts of gas called CFCs were
- 21. The sources of natural destroyers of the ozone layer are also mud volcanoes.
- 22. Scientists' forecasts about the future of ozone
- 23. Some scientists think that the ozone holes'
- 24. Protection of the ozone layer.Governments of many
- 25. I hope that we can solve
- 26. Скачать презентацию
- 27. Похожие презентации
The ozone layer is a layer in the Earth's atmosphere which contains high concentrations of ozone.
Слайд 2 The ozone layer is a layer in the
Earth's atmosphere which contains high concentrations of ozone.
Слайд 4 Ozone absorbs harmful ultraviolet radiation which is produced
by the Sun and protects humans and other living
things from it.Слайд 5 Ground based measurements of Ozone were first started
in 1956, in at Halley Bay, Antarctica.
Слайд 6 Comprehensive satellite measurements of ozone started in 1978
with the Nimbus-7 satellite. The creation of the program
“Nimbus” (there were 7 satellites) was begun by NASA in the 70‘s years.Слайд 7 “Nimbus -7” was equipped with devices for air
pollution's investigation. The Nimbus measurements made clear how severe
the ozone hole problem was.
Слайд 10
Biological effects of the ozone holes.
The ultraviolet radiation
can get on the Earth through such holes. It
leads to a number of serious health risks for humans. It causes eye cataracts, skin cancer and immuno-suppression.Слайд 11 Animals and plants suffer when the level of
the ultraviolet radiation rises, too. A November 2010 report
by scientists at the Institute of Zoology in London found that whales off the coast of California had shown a sharp rise in sun damage.Слайд 12 An increase of UV radiation effects on plant
growth, thus reducing agricultural productivity, for example, crops of
rice.Слайд 13 It is known that in August 2010 the
ozone hole appeared above Europe. The concentration of ozone
declined by 10-15% there. In October 2010 NASA’s satellite recorded the appearance of the ozone hole which stretched from Britain to Western Siberia and from Scandinavia to the Black Sea. By 7 November the ozone hole had skinned over.Слайд 15 planes, that fly on the altitude of
12 – 15 km
planes, that fly at the altitude
of 12 – 15 km Слайд 20 Large amounts of gas called CFCs were produced
in the twentieth century for use in everyday appliances
like fridges, aerosol spray cans, and fire extinguishers.Слайд 22 Scientists' forecasts about the future of ozone holes
are different. Some scientists predict that the every-year depletion
of the ozone layer will continue. Others said that the ozone layer would be restored by 2050.Слайд 23 Some scientists think that the ozone holes' disappearance
would speed up the global rise of temperature.
Слайд 24
Protection of the ozone layer.
Governments of many countries
recognized the problem of ozone depletion, and therefore, united
in 1987 to sign the Montreal Protocol to reduce the amount of CFCs, and so to protect the ozone layer.Слайд 25 I hope that we can solve the
