Um víða veröld - Jörðin

166 hraun 25–29, 136 hringrás vatns 75, 81 hugarkort 51, 56, 81 hvarfbaugar 13, 16, 48, 66, 83 hverir 135, 137 hvirfilpunktur 13 hæðarlínur 51, 52, 54, 57 I – Í Indlandshaf 19, 92–95, 97, 151 innhaf 93, 94 innri reikistjörnur 7 innræn öfl 19, 21, 34, 35, 36, 39, 42 Irminger-straumur 97, 98 ísöld 39, 96 J jarðefnaeldsneyti 63, 105, 116, 117, 122, 124, 125, 130, 132, 137, 152, 153 jarðgas 37, 116, 122, 124, 128, 130, 137 jarðhiti 22, 25, 114, 117, 120, 121, 132, 134–136 jarðmöndull 12, 13, 16, 17 jarðsaga 8–11, 17,153 jarðskjálftar 10, 20, 21, 25, 30–32, 34, 35, 40, 41, 93, 94, 96 jarðskorpa 8, 20 jarðskorpuflekar 9, 10, 21, 22, 30, 32–34, 94, 97 jónahvolf 60 jöklar 9, 10, 33, 36, 39, 82 jökulrof 36, 38, 39 K Kaledóníufellingin 33, 34 Karíbahaf 10, 39, 93, 94, 98 Katla 28 Kárahnjúkavirkjun 105 kjarni 20 kjarnorka 112, 116, 130, 131, 137 Klettafjöll 10, 33 kol 9, 37, 114, 116, 121, 122, 125, 128, 130, 137 kolefnisspor 116, 121 kortalestur 51, 52, 54, 55 kortvörpun 46, 47, 55, 56 Krafla 134 kuldabeltið 78, 81 kuldaskil 72 kvika 22, 24–29 Kyoto–bókun 154 kyrrabelti 65, 66 Kyrrahaf 18, 22, 30, 32, 48, 85, 92–95, 97, 100, 109 Kyrrahafsfleki 22, 30, 94 L La Rance 105, 111 Labradorhaf 93 Labradorstraumur 97, 98, 99 Lakagígar 28, 153 landakort 45, 50, 51, 53, 54, 57 landgola 70 landgrunn 95, 96, 101, 104, 105, 123 landgrunnshlíð 96 landhelgi 107, 111, 168 landmótun 19 landnotkun 142, 145–147, 149 landrek 10, 21, 34, 128 laufskógur 82, 84, 85, 87, 89 Laugarvatnshellir 26 lághitasvæði 135–137 lágþrýstingur 80 leirhver 135 lengdarbaugar 44, 48, 49, 56, 93 lífefnaorka 119 lífrænt eldsneyti 116 lífræn veðrun 36, 37 lofthjúpur 9, 12, 15, 60–65, 80, 132, 153 loftslag 10, 51, 59, 62, 63, 71, 78, 79, 83, 85, 86, 98–100, 110, 141, 153 loftslagsbelti 78, 79, 89 loftslagsbreytingar 9, 80, 95, 116, 151, 153, 154 loftslagsrit 79, 80 loftþrýstingur 64, 65, 67, 71, 80, 81 M málmar 96, 106, 107, 114, 122 meginland 9–11, 17, 18, 20, 22, 23, 79, 87, 95, 99, 105, 128, 156 meginlandsloftslag 79, 87 meginskil 65, 67 mengun 37, 42, 80, 107, 110, 126, 127, 132, 155, 156, 158, 159, 162, 163 Mið–Atlantshafshryggur 22, 28, 94, 97 miðbaugur 44, 48, 56 miðhvolf 60 Miðjarðarhaf 79, 83, 93, 94, 109, 156 Miðjarðarhafsgróður 82, 83 Miðjarðarhafsloftslag 79 miðlífsöld 8, 10, 94 miklihvellur 6 monsúnvindar 67, 68 móbergsstapi 28 móðuharðindi 28, 35 mór 122, 128, 129, 137 myndbreytt berg 23, 25 mælikvarðar 51–53, 56, 57, 72 möndulhalli 16, 153 möttull 20 N NASA 14, 17, 132 náttúruauðlind 114, 121, 132, 137, 140, 162 náttúruvernd 160, 161 náttúruvætti 161 Norður-Íshaf 92, 95, 110, 123 norðurljós 60, 61 norðursjór 93, 109, 123, 124 Noregshaf 93, 123 nýlífsöld 8, 10 O–Ó ofveiði 104, 159, 163 olía 37, 96, 107, 111, 114, 116, 122–125, 127, 128, 130, 132, 137, 159 olíuríki 124, 137 olíuslys 126, 127, 137 olíuvinnsla 103, 110, 123, 137 OPEC 125, 137 orka 62, 105, 113, 116–119, 122, 130, 132, 134, 135, 141, 156 orkugjafar 116, 117, 120, 121, 132, 134 óendurnýjanleg orka 122, 130 óshólmar 37, 39, 42, 43 ósonlag 9, 60, 61, 81