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General
Ocean
Atmosphere
Ice
100
What are some causes of the anthropogenic greenhouse effect?
Burning fossil fuels, deforestation, agricultural and industrial practices.
100
Melting sea ice has the potential to raise sea level by several meters. True or False?
False. Melting sea ice cannot raise global sea level since the ice is already floating (think of an ice cube floating in a glass full of water). Ice from glaciers and ice sheets, which form on land, does add water to Earth’s ocean when it melts and contributes to sea level rise.
100
Which of the following gases do not trap heat – carbon dioxide, nitrogen, water vapor, methane?
Nitrogen.
100
If permafrost melts it will cause a massive release of methane that will cause a huge spike in greenhouse gas emissions. True or False?
True.
200
Which is the primary source of energy in Earths climate system?
The sun.
200
What percentage of atmospheric carbon is absorbed by the ocean?
30-40%
200
Which greenhouse gas is more potent - carbon dioxide or methane?
Methane.
200
What is albedo?
Albedo is the reflectivity of Earth. In other words, it is how much incoming solar radiation is reflected off the Earth's surface. Different surfaces have different albedos. Ice is very reflective, so it has a high albedo. Soil is not very reflective and has a low albedo.
300
Where have some of the strongest and earliest impacts of global warming occurred? In the tropics, in the northern latitudes, or impacts are distributed evenly across the globe.
In the northern latitudes.
300
What percentage of the worlds population lives within 100km of the shoreline?
44%
300
Why is carbon dioxide a bigger concern as a greenhouse gas then methane?
Carbon dioxide is released in much greater quantities than methane. Even though methane is a stronger greenhouse gas, carbon dioxide is a bigger concern because of the vast quantities released into the atmosphere.
300
How much of the world's freshwater is frozen in Greenland and Antarctica?
75%
400
What are ways you can help mitigate the effects of climate change?
- Reduce, reuse, recycle, carpool, bike, skate or walk when possible, compost and unplugging electronics when not in use. - Vote for policy makers, legislative and governmental officials who support climate change initiatives -Vote with your dollar! Money is the biggest asset in creating change, so buy local products and spend your money on companies that support and are making efforts to GO GREEN!
400
Other than melting glaciers and ice sheets, what other factor has made the largest contribution to the rise in sea level over the past 100 years.
Thermal expansion of the ocean. As the ocean warms, it expands and sea level rises, accounting for about a third of the approximately 20cm of sea level rise seen in the last century.
400
Which greenhouse gas has the longest residence time in the atmosphere?
Carbon dioxide.
400
How much would sea level rise if all the frozen water in Greenland and Antarctica was returned to the ocean?
75 meters.