Mers et Océans Flashcards

0
Q

Pop dependant de la peche

A

10% en depend pour sa subsistance

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1
Q

Surfaces maritimes planétaire

A

71%

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2
Q

Gisements en mer (petrole + gaz)

A

30% reserves totales

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3
Q

Part des echanges effectués par transport maritime

A

80% echanges mondiaux en volume

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4
Q

Tonnes marchandises :

  • 1950 ?
  • 2012 ?
A

550 millions

9 milliards

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5
Q

Convention Nations Unies Montego Bay

A

1982

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6
Q

Dessalement de l’eau de mer

A

Koweit pionnier
Qatar
Arabie Saoudite 1er producteur

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7
Q

Si l’ocean etait un pays, il serait la ?e puissance eco

A

7e

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8
Q

Les mers rapportent ?$ par an dans le monde, contre ?$ pour la France

A

2500 milliards
2900 milliards

  • commerce et transport maritime
  • production directe (pêche…)
  • impact ecologique (captation de carbone)
  • production indirecte (tourisme…)
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9
Q

Etude par WWF

A

“Reviving the Ocean Economy”

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10
Q

Enjeu ecologique

A

70% des richesses issues des oceans dependent de la bonne santé des mers

OR 40% de la faune a disparu depuis 1970 (30% de la flore)

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11
Q

Afrique : risque croissante disputes maritimes. 68 limites maritimes potentielles

A

Seulement 32 reglées

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12
Q

Especes de poissons en danger

A

1/3

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13
Q

Pollution des mers provenant des activités terrestres

A

80%

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