Plastic Pollution
How does plastic pollution affect biodiversity?
Biodiversity goes down.
What was the problem with the original sampling method?
The nets were too small and only captured small debris.
How much CO2 does the ocean take in?
25%.
What is the best method to prevent plastic pollution?
STOP MAKING PLASTIC.
How many tons of plastic are produced every year?
460 million metric tons.
What was different about the Mega Expedition?
30 ships, two really large nets, accurate sampling, 1.2 million pieces of plastic brought back.
A 0.1 lowering in pH corresponds to what percent acidity increase?
About 30% increase.
What is an example of legislation that helps reduce plastic pollution?
Break Free from Plastic Pollution Act, US 2021.
What are the different sizes of plastic?
Nano, micro, meso, macro, mega.
How did the aerial sampling differ from the mega expedition?
They used an aircraft with sensors to recreate a 3D model of the garbage patch.
What is the ideal pH level for seawater?
Between 7.5 and 8.4 is optimal.
What is one method to remove CO2 from the ocean?
Seaweed Growth.
Why does plastic breakdown into smaller pieces?
Solar radiation, wind, and ocean currents.
How big is the GPGP
1.2 million km2.
How does OA affect shell formation?
There is less carbonate making it harder for animals to form shells.
What is the driver of OA?
Climate Change.
What are the two sources of plastic pollution?
Natural sources and anthropogenic sources.
How many pieces of plastic are in the GPGP
1.8 trillion pieces.
How does ocean acidification happen?
Ocean takes in CO2 emissions, forming carbonic acid, lowering pH.
How can we slow climate change?
Use less fossil fuels, better waste management, switch to clean energy, and more.