As you might expect, it is a gloomy document that uses facts selectively and puts a negative spin on future events. Worst of all, it is not scientifically accurate. Governments are unlikely to fund researchers who are not already concerned about global warming. Most scientific skeptics do not depend on government funding. They either have tenure at universities or income from pensions or other independent sources.
Scientific dissent does exist and on at least two levels.
First, whether human actions are causing a significant warming. Second, whether there is any warming trend at all. The climate is always changing, just like the weather. Last year may have been the hottest year on record, but one year doesn't make a trend. People sometimes ask me if it's getting hotter or colder.