GLOBAL WARMING

Question 1

What may be driving the snowy winters we have seen in recent years?

Answer 1

Arctic Sea Ice Decline

• 1 million kilometer decline in autumn artic sea ice since 1980
• corresponds with unusually large snowfall events in N.hemisphere

Question 2

When did the hottest year on record in the USA occur?

Answer 2

2012

8th hottest globally

Question 3

This April was the 339th consecutive month with?

Answer 3

An ABOVE-Average temperature

Question 4

If you are right now 28 years old or younger, you have have never lived through what?

Answer 4

You have never lived through a month that was globally colder than average.

Question 5

Are all greenhouse gases the same?

Answer 5

No, for 3 reasons.

Question 6

Are all greenhouse gases the same? (No Different concentrations in the atmosphere) what are these concentrations?

Answer 6

• 365 parts per million CO2
• 315 parts per billion N20
• 1100 times more CO2 than N2O in the atmoshpere

Question 7

Are all greenhouse gases the same? (No Different lifetimes in the atmosphere) what are these lifetimes?

Answer 7

CH4= 5-10 years
CO2 = 100+ years

Question 8

The Carbon Cycle

Answer 8

Human induced changes in greenhouse gas concentrations

Question 9

Due to the recent human influence on the carbon cycle, atmospheric CO2 concentrations taken from the Vostok ice core record with the recent human perturbation superimposed showed what? (graph)

Answer 9

Shows the observed contemporary increase in atmospheric CO2 concentration from the Mauna Loa (Hawaii) Observatory.

Question 10

What percentage of green house gas emissions are due to Carbon Dioxide?

Answer 10

83% Carbon Diixide

Question 11

What percentage of greenhouse gas emissions are due to transportation?

Answer 11

28% Transportation

30% Industry (number one)