Causes of Ocean Warming
The amount of excess heat absorbed by the ocean
90%
What percentage of excess heat from the atmosphere is absorbed by the southern ocean
75%
How much have phytoplankton levels declined in the past 60 years?
20%
It expands and rises
What kind of ocean conference was held in 2017 and what did they achieve?
The UN had a conference and every country there stated they would work towards conserving and sustainably use oceans and marine resources
Name one human activity that increases greenhouse gases
Burning fossil fuels or deforestation
What happens due to less nutrient mixing in the north atlantic
There is less phytoplankton which changes the food web
What animals are likely to escape a dead zone?
Fish, crabs, any mobile animal
What does ocean warming give storms?
More energy
What did the International Maritime Organization recognize about ships?
Ships emissions contribute to ocean warming
Why does ocean warming happen faster near the surface?
Because the surface absorbs most of the solar energy
What reduces productivity in the indian ocean?
The warm water moving to cooler regions
What animals are likely to die off in a dead zone?
What is released into the atmosphere when the ocean is warmer?
Heat and water vapor
What are examples of marine protected areas?
Great Barrier Reef, Galapagos Marine Reserve
What changes in the ocean are caused by its warming?
Shifts in marine ecosystems, sea level rise, deoxygenation and ocean acidification
What is the largest terrestrial ice sheet
Antarctic ice sheet
What is the base of the marine food web?
Phytoplankton
What happens when a carbon sink weakens?
More CO2 stays in the atmosphere
What will protecting and restoring marine ecosystems like mangroves, seagrasses and coral reefs do?
What helps scientists track and predict climate change
Monitoring ocean heat content
What is the name of warming in the arctic ocean
Arctic Amplification
What is the main feature of ocean animals that are mainly affected by acidification?
A shell made out of calcium carbonate
How much of human C02 emissions does the ocean naturally absorb?
25-30%
How to reduce greenhouse gas emissions?
Use renewable energy sources rather than fossil fuels