Lab 12

Question 1

our climate is related to the cycling of several nutrients the most important of which is …

Answer 1

Carbon

Question 2

… and … are both important …, which means their presence in the atmosphere insulates the planet

Answer 2

carbon dioxide; methane; greenhouse gases

Question 3

the presence of greenhouse gases in the atmosphere keeps the planet’s temps warm enough to sustain life, but changes in the global carbon cycle have led to an increase in the pool of C in the atmosphere. this could lead to an increase in the avg … of the planet, or …, which is likely to have significant ecological consequences

Answer 3

temperature; climate change

Question 4

an … measures how much land and water area a human population requires to produce the resource it consumes and to absorb its wastes

Answer 4

ecological footprint

Question 5

…: market-based strategy for controlling the emission of gases that contribute to climate change. the right to emit greenhouse gases is assigned a price and sold to companies that emit more than their pre-determined share of gases

Answer 5

emissions trading

Question 6

…: storage of C somewhere other than the atmosphere

Answer 6

carbon sequestration