MNN Galleries

7 major threats to our planet's oceans

By: Catie Leary on Oct. 16, 2009, 11:22 p.m.
Fishing boats

Photo: coreyfishes/Flickr

2 of 9


Fish are being caught faster than they can reproduce, thanks to today's overzealous global fishing industry. This exploitation of large-scale fishing leads to serious oceanic concerns: depletions in previously abundant species of fish, shrinking fish sizes, compromised biodiversity, declining food supplies, etc.