1. What is a greenhouse gas? Why are climate scientists and others worried about concentrations of such gases in Earth’s atmosphere?
2. What are some of the environmental threats posed by sea-level rise?
1. According to the story, what are tree ‘farts’?
2. What are ghost forests and how do they form?
3. Melinda Martinez helped measure tree farts in North Carolina. How did she do it?
4. What did her measurements show?
5. Which was a bigger source of greenhouse gases — trees or soils? How much bigger was one than the other?
6. According to the story, how did Marcelo Ardón come up with the term tree farts?
1. Do some research and make a list of different greenhouse gases. Not all are equally long-lived in the atmosphere. Not all are equally warming. Make one list ranking them in order of their atmospheric persistence. Make a second list, putting them in order of their warming potential. Based on what you learned, which of the greenhouse gases in tree farts seems to be most worrisome? Explain your reasoning.