Firebox and I Want One Of Those have come up with a novel way to demonstrate how the earth would look if the polar ice caps melted… and it’s in the form of a “Global Warming Mug”. Apparently, when you add hot water to the mug you will see the world’s coastlines slowly disappear under a hundred metres of water!

The Global Warming Mug!
It’s currently priced at £6.95 and as I Want One of Those suggest “Global warming may not be a laughing matter, but there’s nothing wrong with smiling in the face of adversity”.