In short, we aren't on track to an apocalyptic extinction, and the new head is concerned that rhetoric that we are is making people apathetic and paralyzes them from making beneficial actions.
He makes it clear too that this doesn't mean things are perfectly fine. The world is becoming and will be more dangerous with respect to climate. We're going to still have serious problems to deal with. The problems just aren't insurmountable and extinction level.
This figure is then misinterpreted by people who failed basic chemistry to mean that cargo ships are a major contributor to greenhouse gas emissions. In reality, the opposite is true;
Perhaps it's just poor word choice or phrasing, but it reads like you mean that "the opposite is true" in that they are NOT a major contributor to greenhouse gas emissions, when in fact they are a huge contributor, more than California and Texas combined.