This heart sensitive mug is a clever way to raise awareness of environmental issues. As you pour hot water in and it warms up, a map of the world is revealed which shows how much CO2 each country is emitting.

So, every time you enjoy a brew, it reminds you of what's happening when you fill the kettle up too much and boil water unnecessarily and helps to bring the challenges that our environment faces right there in front of you.

A great gift for anyone who's ecologically conscious or perhaps who doesn't take enough notice of the effect of harmful emissions, this mug will serve as a reminder of what's at stake and the harm that humans are doing to the planet we live on.