Climate Change

What is climate?

• A long period of time. 
• Atmospheric conditions of a place at a particular point in time. 
• Average atmospheric conditions of a place over a long period of time, usually 30 years. 
• Current weather outlook of a place. 

Which of the following is the best conclusion that can be made from this graph?

• Atmospheric carbon dioxide levels have been decreasing since 1960
• Hawaii has a lot of carbon dioxide
• Humans have been working hard to decrease carbon dioxide levels
• Atmospheric carbon dioxide levels have increased steadily since 1960s. 

What is climate change?

• Don't know
• Change in global climate, such as an increase in the global temperature and major variations in precipitation patterns. 
• The earth has become sick. 
• A change in the earth's climate due to human causes. 

Which of the following is not a greenhouse gas?

• Carbon dioxide
• Methane
• Water vapour
• Nitrogen

The most abundant greenhouse gas is _____.

• carbon dioxide
• water vapour
• methane
• nitrous oxide

The greenhouse effect is beneficial as it helps to sustain life on earth by naturally trapping heat in the atmosphere. 

• False
• True

The enhanced greenhouse effect is the increase in global temperatures due to an increase in atmospheric greenhouse gases. 

• True
• False

What is another term for enhanced greenhouse effect?

• Global cooling
• Global freezing
• Global barbecue 
• Global warming

The more sunspots there are, the greater the amount of solar radiation emitted by the sun, resulting in global cooling. 

• False
• True

Natural variations in solar output can result in variations in global temperature (global warming and global cooling) over the course of 11 years. 

• True
• False