The most interesting bit for me:

> "We need to [eliminate fossil fuel production] really quickly and that would knock out 40 per cent of shipping," said Sandford.

It turns out much of the carbon footprint of shipping is moving fossil fuel around, meaning if we reduce our use of oil and coal for example, then the amount released by shipping will also reduce. With EVs likely replacing ICE cars over the next 20 years much of this will happen automatically.