Remember the year 2006? It had gotten so bad in terms of climate change that a whole film was put together from the former presidential candidate Al Gore's lectures. "An Inconvenient Truth" became a sensation, educating, irritating and bringing together millions all over the world together for debate, rounding it up with an Academy Award for best documentary feature. What kind of an impact did it all have and has anything changed since, Gore asks a dozen years later in the appropriately-titled sequel "An Inconvenient Sequel".