Turning Up the Temperature?

It has been reported that, what was thought to be the oldest and most stable Arctic ice sheet near Greenland, is breaking up for the first time since records have been taken(https://www.theguardian.com/world/2018/aug/21/arctics-strongest-sea-ice-breaks-up-for-first-time-on-record). This will have several negative effects including a) less sunlight being reflected back into space, increasing global warming and b) encouraging more shipping in the seas of this area, together with further opening the possibility of hydrocarbon (and other mineral) extraction. If you take this together with reports that the US is to encourage more coal burning to generate electricity, things don't look too good for the planet.