1 Which of the following international agreements to address climate change were ratified by the United States?

The Camp David Accord

The Kyoto Protocol

The Paris Agreement

all of the above

2 The fundamental difference between earlier studies of climate change and the "Stern Review" that led to a different conclusion was:

the use of more recent climate data.

the switch from an environmental perspective to an ecological perspective.

the use of a lower discount rate.

the abandonment of cost-benefit analysis.

3 The Paris Agreement was ratified very quickly, in part because:

Canada refused to be part of the agreement.

It was feared that Donald Trump might be elected U. S. President.

North Korea was thought to be close to attaining the ability to deliver a nuclear weapon to the United States with an ICBM.

Volkswagen was caught cheating on diesel emissions tests.

4 Which of the following would qualify as a positive externality?

A new technology developed as part of NASA's Apollo program that was used in a non-related industry.

Carbon dioxide emissions from a coal-fired power plant, which contribute to the greenhouse effect.

A fire caused by an exploding P,G,&E transformer.

All of the above.

5 A big problem with Public Goods is:

free riders will attempt use them without paying for them.

firms find it difficult to produce them profitably.

A and B.

they are too expensive for most consumers.