Global warming is a problem we're all aware of, but it slips in and out of our minds depending on what's happening in the press. 'Dog stuck between some railings' or 'Cute panda gives birth to ten-faced millipede' are all that it takes to distract us from more global issues.

Now you can integrate your environmental concerns into your everyday routine with our Global Warming Mug. By day, it's an effective, decorative mug with a rather fetching map of Earth on it. By night, or when you add water, more precisely, it becomes a rather sinister reminder of the damage we're doing to the planet.

Watch as huge swathes of the UK are consumed by water, gawp as central America becomes a sprawling network of small islands. It's a sobering thought, although thoughts of sobering will be the last thing you need. Unless you fill it with wine, of course.