An environmental statement shirt that is sure to start a conversation or two. 

Inspired by the issue of population growth and it's impact on climate change and Agent Smith from The Matrix.

To quote Agent Smith, "I'd like to share a revelation that I've had during my time here. It came to me when I tried to classify your species and I realized that you're not actually mammals. Every mammal on this planet instinctively develops a natural equilibrium with the surrounding environment but you humans do not. You move to an area and you multiply and multiply until every natural resource is consumed and the only way you can survive is to spread to another area. There is another organism on this planet that follows the same pattern. Do you know what it is? A virus. Human beings are a disease, a cancer of this planet."

Controversial? Sure. True? You decide. A t-shirt for raising climate change awareness.