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30 Cards in this Set

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  • Back
Generally, does glacier building take a long or short period of time?
long period of time
Does glacier destruction as a result of sliding into the ocean take a long or short period of time?
short period of time
Where does melting ice get much of its energy these days?
from human activities which add to the energy imbalance
How do ice sheets increse the amount of sunlight they absorb?
by being covered with black carbon aerosols
How is the melting and refreezing of ice covered in black carbon a positive feedback loop?
Ice with black carbon melts and reforms with even more black carbon, causing increased rates of melting
Will the sea level change dramatically in the next few years?
no
How many years, roughly, would it take to alter ice sheets so that they melted rapidly?
centuries
What is ICESat?
a NASA satellite designed to detect early ice sheet fragmentation
Which organization is responsible for ICESat?
NASA
Would it be easy to stop sea level rise?
no
According to James Hansen, how should the upper limit of "dangerous antropogenic influence" be determined?
energy imbalance to the point that the melting of glaciers is inevitable - again, this does not answer the "how part of the question
According to James Hansen, by how mush can global temperature (in Celsius) increase before the threshold of "dangerous antropogenic influence" is crossed?
by 1 degree Celsius
According to James Hansen, by how much can climate forcing increase (in watts per square meter) before the threshold of "dangerous antropogenic influence" is crossed?
by 1 watt per square meter
According to the IPCC, by how much will carbon dioxide force the climate in the next 50 years?
by 1 to 3 watts per square meter
Generally, in what unit is climate forcing measured?
watts per square meter
Generally, does glacier building take a long or short period of time?
long period of time
Does glacier destruction as a result of sliding into the ocean take a long or short period of time?
short period of time
Where does melting ice get much of its energy these days?
from human activities which add to the energy imbalance
How do ice sheets increse the amount of sunlight they absorb?
by being covered with black carbon aerosols
How is the melting and refreezing of ice covered in black carbon a positive feedback loop?
Ice with black carbon melts and reforms with even more black carbon, causing increased rates of melting
Will the sea level change dramatically in the next few years?
no
How many years, roughly, would it take to alter ice sheets so that they melted rapidly?
centuries
What is ICESat?
a NASA satellite designed to detect early ice sheet fragmentation
Which organization is responsible for ICESat?
NASA
Would it be easy to stop sea level rise?
no
According to James Hansen, how should the upper limit of "dangerous antropogenic influence" be determined?
energy imbalance to the point that the melting of glaciers is inevitable - again, this does not answer the "how part of the question
According to James Hansen, by how mush can global temperature (in Celsius) increase before the threshold of "dangerous antropogenic influence" is crossed?
by 1 degree Celsius
According to James Hansen, by how much can climate forcing increase (in watts per square meter) before the threshold of "dangerous antropogenic influence" is crossed?
by 1 watt per square meter
According to the IPCC, by how much will carbon dioxide force the climate in the next 50 years?
by 1 to 3 watts per square meter
Generally, in what unit is climate forcing measured?
watts per square meter