"4meetmed" - 1 õppematerjal

Osoonikihi olukord ja seda mõjutavad tegurid

24 3.2.3Osoonikihi olukord polaaralade kohal...............................................................................................................24 3.3Osoonikihi paksuse sõltuvus päikese aktiivsusest....................................................................................................27 3.4Osoonikihi tulevik.....................................................................................................................................................27 4Meetmed osoonikihi kaitse..............................................................................................................................................29 4.1Osoonikihi taastamine...............................................................................................................................................29 4.2Rahvusvahelised meetmed osoonikihi kaitseks........................................................................................................30 4