7.6.1 - Why are floods and droughts happening more often?

7.6.2 - What would we normally expect for these places and how do we know it's really changing?

7.6.3 - How would increased temperatures affect evaporation?

7.6.4 - Are rising temperatures affecting anything else in Earth's water system?

7.6.6 - How are rising temperatures connected to two seemingly different phenomena?

7.6.7 - What changes in the air could be related to rising temperatures?

7.6.8 - Are changes in carbon dioxide and methane related to or causing temperatures to increase?

7.6.9 - Are the changes in the amount of CO2 in the atmosphere part of normal cycles that Earth goes through?

7.6.10 - What is happening in the world to cause the sharp rise in CO2?

7.6.11 - Why could burning fossil fuels create a problem for CO2 in the atmosphere?

7.6.12 - How are changes to Earth's carbon system impacting Earth's water system?