Lecture 2-3: Questions 1) Which are the general trends regarding Earth's average near-surface atmospheric temperature? 2) What do you know about the global glacial retreat (trends and consequences)? 3) Which are the recent trends in the sea level rise? 4) Describe the basic mechanism underlying the greenhouse effect? 5) Which are the gases involved in the human caused enhancement of the greenhouse effect? 6) Which is the greenhouse gas with the highest warming potential and the longest lifetime in the atmosphere? 7) Which are the general trends regarding the CO2atmospheric concentrations after the Industrial Revolution? 8) Climate change and marine phytoplankton: What is the “biological pump”?