This very convenient global warming coffee mug carries an inconvenient truth. The blue mug is covered with a map of the world. When you pour in a hot beverage this mug demonstrates what will happen when the world heats up, the Polar Ice Caps melt, and the ocean levels rise. Confront the reality of global warming as the landmasses on this mug disappear before your eyes! Coastlines vanish, Central America nearly disappears, Florida fades out, and more. This cool mug tackles a serious issue. The first step towards lasting action is acknowledging the importance of our environmental problems. If you’re going to take on the world’s problems, you’ll want a warm cup of coffee in your hand. This Global Warming mug will hold up to 10 ounces of your favorite beverage. Disappearing mugs are not dishwasher safe.