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Marine pollution - Coggle Diagram
Marine pollution
algal blooms
which can be toxic to wildlife
harmful to humans
hurt local fishing and tourism industries
Garbage in the ocean
most of them plastic
80 percent of which comes from sources on land
Common marine debris
various plastic items
shopping bags
beverage bottles
cigarette butts
bottle caps
food wrappers
fishing gear
Plastic items
take hundreds of years to decompose
dangers to both humans and animals
Fish become tangled and injured in the debris
some animals mistake items like plastic bags for food and eat them
Solutions for marine pollution
prevention and cleanup
cleanup
Chemical contamination
（nutrient pollution）
Cause
use of fertilizer on farms
the runoff of chemicals into the ocean
many countries are taking action
more than sixty countries have enacted regulations to limit or ban the use of disposable plastic items
