When an El Niño kicks in. During an El Niño, the trade winds weaken in the central and western Pacific. Surface water temperatures off South America warm up, because there is less upwelling of the cold water from below to cool the surface.
As the magma cools and solidifies, the convection currents will stop and the Earth will become geologically dead.
J) because it is political irony signifying that world leaders have done little to help or reverse the affects of climate change and that is seen by the iceberg stamped with the words “Climate Change”. The boat also signifies carbon emissions and how little most countries have actually done to reduce their carbon emissions per capita.