How accurate were the predictions in Al Gore's 'An Inconvenient Truth' regarding climate change?

While not everything in Al Gore's film was perfectly accurate, much of it contained solid scientific backing. Some predictions were off in timing - for example, his projection that CO2 would reach 600 parts per million was estimated to happen in 50 years, but scientists now predict this by century's end, making him about 50 years early. The film's simulation showing New York City underwater was based on a scenario of Greenland's ice sheet breaking apart, which hasn't occurred. However, many core climate concerns have proven valid, with CO2 levels rising significantly from 380 ppm when the film was made to over 420 ppm today, confirming the troubling trend scientists agree upon.