Chapter 9 - Paleoclimate

Question 1

Which of the following is true?
A) The present rate of global warming (PROGW) is unprecedented
B) The ‘PROGW’ is normal and has occurred numerous times in the past
C) The ‘PROGW’ has also occurred one other time in the past - at the end of the last ice-age
D) The ‘PROGW’ also occurred at the end of the Mesozoic and killed the dinosaurs
E) The ‘PROGW’ also occurred at the end of the Precambrian resulting in the evolution of animals with shells

Answer 1

B) The ‘PROGW’ is normal and has occurred numerous times in the past

Question 2

The most immediate climatic effect, lasting for up to several years, of large pyroclastic volcanic eruptions on Earth is:
A) Global warming
B) Global cooling
C) There is no climatic effect

Answer 2

B) Global cooling