Clouds & Global Warming

Clouds undoubtedly have an impact on insolation levels and temperature on Earth.  However, the role that clouds will play in global warming is not entirely clear.  If you read ALL the content material for Chapter 4, you should have read  that examined the role that clouds might play in global warming. Respond to the questions below using the information from those two articles.
Written assignments are a minimum of 250 words, grammatically correct and spelling-error free.

What is global warming and what is causing it?
What are some of the impacts global warming is having and is predicted to have?
What predictions are scientists making about the role clouds will have in global warming?
Why are such predictions difficult to make?